阅读说明：本技术 作业安全监测报警系统及报警方法 (Operation safety monitoring alarm system and alarm method ) 是由 李绪延 穆波 吴瑞青 万古军 崔靖文 辛一男 于 2020-05-25 设计创作，主要内容包括：本发明涉及作业安全监控技术领域,提供一种作业安全监测报警系统,所述系统包括多个监测子系统；每个所述监测子系统用于：对与该监测子系统对应的作业区域的作业安全进行监测,当监测到该作业区域的作业安全异常时进行报警,并生成报警信息；将所述报警信息发送给联动监测子系统,以使所述联动监测子系统根据所述报警信息进行报警,其中所述联动监测子系统为预先设定的与该监测子系统连接的其他监测子系统。本发明提供的技术方案,能够在以安全异常位置为中心的预定范围内进行及时报警,从而极大地提高联动报警的时效性。(The invention relates to the technical field of operation safety monitoring, and provides an operation safety monitoring alarm system, which comprises a plurality of monitoring subsystems; each of the monitoring subsystems is configured to: monitoring the operation safety of the operation area corresponding to the monitoring subsystem, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information; and sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem. The technical scheme provided by the invention can alarm in time within a preset range taking the safety abnormal position as the center, thereby greatly improving the timeliness of linkage alarm.)

1. An operation safety monitoring and alarming system is characterized by comprising a plurality of monitoring subsystems; each of the monitoring subsystems is configured to:

monitoring the operation safety of the operation area corresponding to the monitoring subsystem, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information;

and sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem.

2. A work safety monitoring alarm system according to claim 1, wherein each of the monitoring subsystems comprises: a video monitoring apparatus, and at least one gas monitoring device connected to the video monitoring apparatus;

the monitoring of the operation safety of the operation area corresponding to the monitoring subsystem, the alarming when the operation safety of the operation area is monitored to be abnormal, and the alarm information generation method comprises the following steps:

monitoring a real-time video picture of an operation area corresponding to the monitoring subsystem by the video monitoring equipment of the monitoring subsystem, alarming when an operation safety abnormal picture of the operation area is monitored, and generating first alarm information;

monitoring the concentration of the preset monitoring gas in a preset subarea in an operation area corresponding to the monitoring subsystem by a gas monitoring device of the monitoring subsystem, alarming when the concentration of the preset monitoring gas exceeds a preset concentration threshold value, and generating second alarm information;

the alarm information is sent to a linkage monitoring subsystem, so that the linkage monitoring subsystem gives an alarm according to the alarm information, and the method comprises the following steps:

sending the first alarm information to a linkage video monitoring device in the linkage monitoring subsystem by a video monitoring device of the monitoring subsystem so that the linkage video monitoring device gives an alarm according to the first alarm information, wherein the linkage video monitoring device is a preset video monitoring device connected with the video monitoring device;

and the gas monitoring device of the monitoring subsystem sends the second alarm information to the linkage video monitoring equipment through the video monitoring equipment of the monitoring subsystem so that the linkage video monitoring equipment gives an alarm according to the second alarm information.

3. The operation safety monitoring and alarming system according to claim 2, wherein the linkage video monitoring device is further configured to send the second alarm information to a gas monitoring device connected to the linkage video monitoring device, so that the gas monitoring device connected to the linkage video monitoring device alarms according to the second alarm information.

4. The work safety monitoring and alarm system of claim 2, wherein the video monitoring device of the monitoring subsystem is further configured to: and sending the second alarm information to other gas monitoring devices in the monitoring subsystem so that the other gas monitoring devices in the monitoring subsystem give an alarm according to the second alarm information.

5. The work safety monitoring alarm system of claim 2, wherein the first alarm information includes location information of a video monitoring device of the monitoring subsystem, and prior to the alarm being performed according to the first alarm information, the linked video monitoring device is further configured to:

and judging whether to alarm or not according to the position information of the video monitoring equipment of the monitoring subsystem.

6. The work safety monitoring alarm system of claim 5, wherein the first alarm information further includes an identification of a video monitoring device of the monitoring subsystem, the linked video monitoring device further configured to: and judging whether to process the first alarm information according to the identity of the video monitoring equipment of the monitoring subsystem.

7. The work safety monitoring alert system according to claim 2, wherein the second alert information includes: the position information of the gas monitoring device of the monitoring subsystem and the type of the preset monitoring gas are used for alarming according to the second alarm information, and the linkage video monitoring equipment is also used for:

and judging whether to alarm or not according to the position information of the gas monitoring device of the monitoring subsystem and the type of the preset monitoring gas.

8. The work safety monitoring alarm system according to claim 7, wherein the linkage video monitoring device determines whether to alarm in the following manner:

calculating the distance between the linkage video monitoring equipment and the gas monitoring device according to the position information of the gas monitoring device of the monitoring subsystem;

acquiring a preset distance threshold corresponding to the type of the preset monitoring gas according to the type of the preset monitoring gas;

and alarming when the distance is smaller than the preset distance threshold value.

9. The work safety monitoring alarm system of claim 7, wherein the second alarm information further includes an identification of a video monitoring device of the monitoring subsystem, the linked video monitoring device further configured to: and judging whether to process the second alarm information according to the identity of the video monitoring equipment of the monitoring subsystem.

10. The operation safety monitoring and alarming system according to claim 9, wherein an identification of a video monitoring device of the monitoring subsystem is pre-stored in the linkage video monitoring device as a preset identification, and the linkage video monitoring device determines whether to process the second alarm information in the following manner:

and when the received identity of the video monitoring equipment is the same as the preset identity, processing the second alarm information.

11. The work safety monitoring and alarm system of claim 2, wherein the video monitoring device of the monitoring subsystem is further configured to:

and when the data transmission between the video monitoring equipment of the monitoring subsystem and the linkage video monitoring equipment and between the video monitoring equipment of the monitoring subsystem and the gas monitoring device connected with the video monitoring equipment is interrupted, alarming.

12. The work safety monitoring and alarm system according to claim 2, wherein the video monitoring equipment of the monitoring subsystem is further configured to receive and display monitoring information transmitted from the gas monitoring device connected thereto.

13. The work safety monitoring and warning system of claim 12, wherein the monitoring information includes: the concentration of the predetermined monitoring gas, the identification of the gas monitoring device, and the location information of the gas monitoring device.

14. An operation safety monitoring and alarming method is applied to the operation safety monitoring and alarming system of claim 1, and the method comprises the following steps:

the following operations are carried out on the working area corresponding to each monitoring subsystem:

monitoring the operation safety of the operation area, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information;

and sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem.

Technical Field

The invention relates to the technical field of operation safety monitoring, in particular to an operation safety monitoring alarm system and an operation safety monitoring alarm method.

Background

The production of petroleum refining industry has the characteristics of flammability, explosiveness, high temperature, high pressure, toxicity and harm, and in order to ensure the safety of an operation site, video monitoring equipment is generally adopted to carry out real-time video monitoring on the operation site, and meanwhile, a gas monitor is adopted to carry out monitoring and alarming on the concentration of toxic and harmful gas in an operation area.

However, the alarm range of the gas monitor is limited, one gas monitor can only remind operators at the alarm position, and in actual work, once harmful gas in a certain operation area exceeds the standard, the influence range is very large, but the above independent alarm mode cannot remind other affected areas by alarming, so that the actual monitoring alarm requirement cannot be met.

In view of the above technical problems, the prior art provides a linkage alarm mechanism, when a certain operation area has a safety monitoring alarm, the alarm information is transmitted to a central control system, and then the central control system controls alarm devices of other operation areas within a predetermined range with a safety abnormal position as a center to alarm, so as to achieve the purpose of carrying out safety reminding on personnel in other operation areas within the predetermined range. However, in this way, since the information needs to be transmitted through the central control system, the acquisition of the alarm information by other alarm devices is delayed to a certain extent, and thus the requirement of real-time alarm within a predetermined range cannot be met.

Disclosure of Invention

In view of the above, the present invention is directed to a work safety monitoring alarm system and an alarm method, which can alarm in time within a predetermined range centered on a safety abnormal position, so as to greatly improve the timeliness of linkage alarm.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an operational safety monitoring alarm system, the system comprising a plurality of monitoring subsystems; each of the monitoring subsystems is configured to:

monitoring the operation safety of the operation area corresponding to the monitoring subsystem, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information;

and sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem.

Preferably, each of said monitoring subsystems comprises: a video monitoring apparatus, and at least one gas monitoring device connected to the video monitoring apparatus;

the monitoring of the operation safety of the operation area corresponding to the monitoring subsystem, the alarming when the operation safety of the operation area is monitored to be abnormal, and the alarm information generation method comprises the following steps:

monitoring a real-time video picture of an operation area corresponding to the monitoring subsystem by the video monitoring equipment of the monitoring subsystem, alarming when an operation safety abnormal picture of the operation area is monitored, and generating first alarm information;

monitoring the concentration of the preset monitoring gas in a preset subarea in an operation area corresponding to the monitoring subsystem by a gas monitoring device of the monitoring subsystem, alarming when the concentration of the preset monitoring gas exceeds a preset concentration threshold value, and generating second alarm information;

the alarm information is sent to a linkage monitoring subsystem, so that the linkage monitoring subsystem gives an alarm according to the alarm information, and the method comprises the following steps:

sending the first alarm information to a linkage video monitoring device in the linkage monitoring subsystem by a video monitoring device of the monitoring subsystem so that the linkage video monitoring device gives an alarm according to the first alarm information, wherein the linkage video monitoring device is a preset video monitoring device connected with the video monitoring device;

and the gas monitoring device of the monitoring subsystem sends the second alarm information to the linkage video monitoring equipment through the video monitoring equipment of the monitoring subsystem so that the linkage video monitoring equipment gives an alarm according to the second alarm information.

Furthermore, the linkage video monitoring equipment is also used for sending the second alarm information to a gas monitoring device connected with the linkage video monitoring equipment, so that the gas monitoring device connected with the linkage video monitoring equipment gives an alarm according to the second alarm information.

Further, the video monitoring device of the monitoring subsystem is further configured to: and sending the second alarm information to other gas monitoring devices in the monitoring subsystem so that the other gas monitoring devices in the monitoring subsystem give an alarm according to the second alarm information.

Further, the first alarm information includes position information of a video monitoring device of the monitoring subsystem, and before the alarm is performed according to the first alarm information, the linkage video monitoring device is further configured to:

and judging whether to alarm or not according to the position information of the video monitoring equipment of the monitoring subsystem.

Further, the first alarm information further includes an identification of the video monitoring device of the monitoring subsystem, and the linkage video monitoring device is further configured to: and judging whether to process the first alarm information according to the identity of the video monitoring equipment of the monitoring subsystem.

Further, the second alarm information includes: the position information of the gas monitoring device of the monitoring subsystem and the type of the preset monitoring gas are used for alarming according to the second alarm information, and the linkage video monitoring equipment is also used for:

and judging whether to alarm or not according to the position information of the gas monitoring device of the monitoring subsystem and the type of the preset monitoring gas.

Preferably, the linkage video monitoring equipment judges whether to alarm or not by adopting the following method:

calculating the distance between the linkage video monitoring equipment and the gas monitoring device according to the position information of the gas monitoring device of the monitoring subsystem;

acquiring a preset distance threshold corresponding to the type of the preset monitoring gas according to the type of the preset monitoring gas;

and alarming when the distance is smaller than the preset distance threshold value.

Further, the second alarm information further includes an identification of the video monitoring device of the monitoring subsystem, and the linkage video monitoring device is further configured to: and judging whether to process the second alarm information according to the identity of the video monitoring equipment of the monitoring subsystem.

Preferably, the identity of the video monitoring device of the monitoring subsystem is pre-stored in the linkage video monitoring device as a preset identity, and the linkage video monitoring device determines whether to process the second alarm information in the following manner:

and when the received identity of the video monitoring equipment is the same as the preset identity, processing the second alarm information.

Further, the video monitoring device of the monitoring subsystem is further configured to:

and when the data transmission between the video monitoring equipment of the monitoring subsystem and the linkage video monitoring equipment and between the video monitoring equipment of the monitoring subsystem and the gas monitoring device connected with the video monitoring equipment is interrupted, alarming.

Further, the video monitoring equipment of the monitoring subsystem is also used for receiving and displaying monitoring information sent from the gas monitoring device connected with the video monitoring equipment.

Preferably, the monitoring information includes: the concentration of the predetermined monitoring gas, the identification of the gas monitoring device, and the location information of the gas monitoring device.

Another objective of the present invention is to provide an operation safety monitoring and alarming method, which can alarm in time within a predetermined range centered on a safety abnormal position, so as to greatly improve the timeliness of linkage alarm.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an operation safety monitoring and alarming method is applied to the operation safety monitoring and alarming system, and comprises the following steps:

the following operations are carried out on the working area corresponding to each monitoring subsystem:

monitoring the operation safety of the operation area, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information;

and sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem.

The operation safety monitoring and alarming system and the alarming method divide the operation safety monitoring and alarming system into a plurality of monitoring subsystems, each monitoring subsystem monitors the operation safety of an operation area corresponding to the monitoring subsystem, alarms when the operation safety of the operation area is monitored to be abnormal, generates alarming information and sends the alarming information to the linkage monitoring subsystem, so that the linkage monitoring subsystem and the monitoring subsystem perform linkage alarming together according to the alarming information. Compared with the prior art, the technical scheme of the invention does not need to transmit the alarm information through a central control system, but directly transmits the alarm information among the monitoring subsystems, thereby reducing the system delay and greatly improving the transmission efficiency of the alarm information. Therefore, the technical scheme provided by the invention can alarm in time within a preset range taking the safety abnormal position as the center, thereby greatly improving the timeliness of linkage alarm.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a first block diagram of a system according to an embodiment of the present invention;

FIG. 2 is a second block diagram of the system according to the embodiment of the present invention;

FIG. 3 is a third block diagram of the system according to the embodiment of the present invention;

FIG. 4 is a flow chart illustrating the processing of the received data by the video surveillance appliance in accordance with an embodiment of the present invention;

FIG. 5 is a flow chart illustrating the processing of received data by a gas monitoring device in accordance with an embodiment of the present invention;

FIG. 6 is an external view of a video surveillance apparatus according to an embodiment of the present invention;

FIG. 7 is an external view of a gas monitoring device in an embodiment of the present invention;

FIG. 8 is a flow chart of a method of an embodiment of the present invention.

Description of the reference numerals

1-monitoring subsystem 2-video monitoring equipment 3-gas monitoring device

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

Fig. 1 is a first block diagram of a system according to an embodiment of the present invention, where the system includes a plurality of monitoring subsystems, each of the monitoring subsystems is configured to: monitoring the operation safety of the operation area corresponding to the monitoring subsystem, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information; and sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem.

In this embodiment, a certain monitoring subsystem is preset according to actual needs to be connected with which monitoring subsystems, and a wireless connection mode is adopted between the monitoring subsystems, and a Network adopted by the wireless connection includes, but is not limited to, a mobile/telecommunication 3G/4G, a Virtual Private Network 4G, WIFI, a VPN (Virtual Private Network) intranet, an LPWAN (Low-Power Wide-Area Network ), and the like.

The linkage monitoring subsystem in the embodiment is used for carrying out linkage alarm together with the monitoring subsystem when an alarm event occurs in one monitoring subsystem. In order to perform linkage alarm more accurately and reduce unnecessary resource consumption, in practical application, whether the linkage monitoring subsystem performs linkage alarm depends on the influence range of the monitoring subsystem generating the alarm event and the position of the monitoring subsystem generating the alarm event. Such as the leakage range of hydrogen sulfide and its leakage points.

Fig. 2 and 3 are preferred configurations of the monitoring subsystem shown in fig. 1. In fig. 2 and 3, each monitoring subsystem includes: the system comprises a video monitoring device and at least one gas monitoring device connected to the video monitoring device.

In this embodiment, there is one video monitoring device in each monitoring subsystem, and there are multiple gas monitoring devices connected to the video monitoring device, so as to monitor harmful gas in multiple sub-areas in the operation area. Then, the above-mentioned "monitoring the operation safety of the operation area corresponding to the monitoring subsystem, giving an alarm when the operation safety of the operation area is monitored to be abnormal, and generating alarm information" is specifically implemented by adopting the following method:

firstly, a video monitoring device of the monitoring subsystem monitors a real-time video picture of a working area corresponding to the monitoring subsystem, and gives an alarm when monitoring an abnormal working safety picture of the working area, and generates first alarm information. The alarm event represents the operation safety abnormity in the monitoring picture so as to remind the operator in the monitoring picture to operate according to the safety specification.

Secondly, monitoring the concentration of the preset monitoring gas in a preset subarea in the working area corresponding to the monitoring subsystem by a gas monitoring device of the monitoring subsystem, alarming when the concentration of the preset monitoring gas exceeds a preset concentration threshold value, and generating second alarm information. The alarm event represents that the concentration of harmful gas in a certain subarea in the operation area exceeds the standard so as to remind operators in the operation area to carry out relevant treatment. In practical application, the gas monitoring device mainly completes the tasks of monitoring, alarming and monitoring data transmission of gases such as hydrogen sulfide, combustible gas, oxygen, carbon monoxide and the like on an operation site.

As a specific application of the monitoring subsystem with wireless connection, in this embodiment, a preset video monitoring device connected to the video monitoring device is used as a linkage video monitoring device, and the linkage video monitoring device is used to perform linkage alarm together with the video monitoring device when an alarm event occurs in one of the video monitoring devices. In order to perform linkage alarm more accurately and reduce unnecessary resource consumption, in practical application, whether linkage alarm is performed by linkage video monitoring equipment depends on whether the distance between the equipment is within the influence range of the alarm event.

Similarly, the embodiment also defines a linkage gas monitoring device, which is used for performing linkage alarm together with a certain gas monitoring device when the alarm event occurs in the gas monitoring device. It should be noted that, the gas monitoring devices in different monitoring subsystems cannot directly transmit information or data, and need to transmit information or data through video monitoring equipment. For example, in fig. 2, when a gas monitoring device 0101 monitors a certain gas superscript and an alarm event occurs, first, alarm information needs to be sent to a video monitoring device 0100, then the video monitoring device 0100 sends the alarm information to a video monitoring device 0200, and then the video monitoring device 0200 sends the alarm information to a gas monitoring device 0201, 0202 … … 020n connected to the video monitoring device 0200.

Under the preferred structure shown in fig. 2 and 3, the above-mentioned "sending the alarm information to the linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information" is specifically implemented in the following manner:

firstly, the video monitoring equipment of the monitoring subsystem sends the first alarm information to the linkage video monitoring equipment in the linkage monitoring subsystem so that the linkage video monitoring equipment gives an alarm according to the first alarm information, wherein the linkage video monitoring equipment is preset video monitoring equipment connected with the video monitoring equipment. The alarm event is a linkage alarm of the monitoring picture so as to carry out related reminding on personnel in other operation areas influenced by the operation safety abnormal area in the monitoring picture.

Secondly, the gas monitoring device of the monitoring subsystem sends the second alarm information to the linkage video monitoring equipment through the video monitoring equipment of the monitoring subsystem, so that the linkage video monitoring equipment gives an alarm according to the second alarm information.

Further, in this embodiment, the linkage video monitoring device is further configured to send the second alarm information to a gas monitoring device connected to the linkage video monitoring device, so that the gas monitoring device connected to the linkage video monitoring device alarms according to the second alarm information. The alarm event is a linkage alarm of gas monitoring so as to remind people in other operation subareas or other operation areas affected by the harmful gas exceeding subarea that the gas exceeds the standard.

Meanwhile, the video monitoring equipment of the monitoring subsystem is also used for: and sending the second alarm information to other gas monitoring devices in the monitoring subsystem so that the other gas monitoring devices in the monitoring subsystem give an alarm according to the second alarm information. For example, in fig. 2, it is assumed that the gas monitoring apparatus connected to the video monitoring device 0100 further includes 0103, 0104, and … … 010n, and when the gas monitoring apparatus 0101 detects that a certain gas is over-standard and an alarm event occurs, the gas monitoring apparatus 0101 first transmits alarm information to the video monitoring apparatus 0100, and the video monitoring apparatus 0100 then transmits the alarm information to the gas monitoring apparatuses 0102 and 0103 … … 010n, so that the gas monitoring apparatuses 0102 and 0103 … … 010n also perform linked alarm.

In this embodiment, first alarm information includes the positional information of the video monitoring equipment of this monitoring subsystem, and before reporting to the police according to first alarm information, linkage video monitoring equipment still is used for: and judging whether to alarm or not according to the position information of the video monitoring equipment of the monitoring subsystem.

Specifically, the linkage video monitoring equipment judges whether to alarm or not by adopting the following modes: and calculating the distance between the linkage video monitoring equipment and the video monitoring equipment according to the position information of the video monitoring equipment of the monitoring subsystem, and alarming when the distance is smaller than a first preset distance threshold value. The first preset distance threshold is determined according to the actual influence range. For example, in practical application, the site violation behavior does not actually need to generate linkage alarm among monitoring subsystems, so that the alarm range is limited to the monitoring point where the violation behavior occurs for the site violation behavior, and the alarm information does not need to be transmitted to other monitoring subsystems; and if the first alarm information is abnormal conditions such as fire or smoke are monitored, the alarm information is transmitted to other monitoring subsystems.

Further, the first alarm information further includes an identification of the video monitoring device of the monitoring subsystem, and the linkage video monitoring device is further configured to: and judging whether to process the first alarm information according to the identity of the video monitoring equipment of the monitoring subsystem. Specifically, the identity of the video monitoring device of the monitoring subsystem is pre-stored in the linkage video monitoring device as a preset identity, and the linkage video monitoring device judges whether to process the first alarm information in the following way: when the received identity mark of the video monitoring equipment is the same as the preset identity mark, processing the first alarm information, namely responding to the first alarm information; and when the received identity identification of the video monitoring equipment is different from the preset identification, the first alarm information is not responded, so that the accuracy of the data transmission object between each device and equipment is ensured.

In this embodiment, the second alarm information includes: the position information of the gas monitoring device of the monitoring subsystem and the type of the preset monitoring gas are used for alarming according to second alarm information, and the linkage video monitoring equipment is also used for: and judging whether to alarm or not according to the position information of the gas monitoring device of the monitoring subsystem and the type of the preset monitoring gas.

Specifically, the linkage video monitoring equipment judges whether to alarm or not by adopting the following modes: and calculating the distance between the linkage video monitoring equipment and the gas monitoring device according to the position information of the gas monitoring device of the monitoring subsystem, meanwhile, acquiring a preset distance threshold corresponding to the type of the preset monitoring gas according to the type of the preset monitoring gas, and alarming when the distance is smaller than the preset distance threshold. In this embodiment, the type of the predetermined monitoring gas and the corresponding preset distance threshold may be stored in advance, that is, the actual gas abnormality influence range is determined according to the type of the monitoring gas and the abnormal position of the monitoring gas, so as to determine the actual alarm range.

Further, the second alarm information further includes an identification of the video monitoring device of the monitoring subsystem, and the linkage video monitoring device is further configured to: and judging whether to process the second alarm information according to the identity of the video monitoring equipment of the monitoring subsystem. Specifically, the identity of the video monitoring device of the monitoring subsystem is pre-stored in the linkage video monitoring device as a preset identity, and the linkage video monitoring device judges whether to process the second alarm information in the following way: when the received identity mark of the video monitoring equipment is the same as the preset identity mark, processing second alarm information, namely responding to the second alarm information; and when the received identity identifier of the video monitoring equipment is different from the preset identifier, not responding to the second alarm information, thereby ensuring the accuracy of the data transmission object between each device and equipment.

In this embodiment, an identity is preset for each video monitoring device and each gas monitoring apparatus, and the video monitoring device in each monitoring subsystem is used as a monitoring master device, and the gas monitoring apparatus in the monitoring subsystem is used as a monitoring slave device. The wireless communication mechanism described in this embodiment is suitable for transmission of gas monitoring and alarm information between devices, and supports wireless transmission of data between a master device and a slave device and between monitoring master devices. When the device transmits monitoring or alarm data, the identity identification data of the device is inserted into the transmitted data packet, so that a specific identity identification number needs to be set between each device in advance. In order to meet the coverage of monitoring of an operation site, the number of the video monitoring equipment and the number of the gas monitoring devices are considered, and the identity mark is set to be a four-digit number. The former two digits in the identity of the monitoring master device are the serial number of the master device, the latter two digits are '00', the former two digits in the identity of the monitoring slave device are the serial number of the slave device, and the latter two digits are the serial number of the slave device. For example, if the number of a certain monitoring master is 01 and the number of a certain monitoring slave is 01, the number of the monitoring master identity is "0100", and the number of the monitoring slave identity is "0101". Before each monitoring device enters a working state, the monitoring master device is required to be provided with the connected monitoring slave device in advance, and the monitoring slave device sends gas monitoring data to the monitoring master device according to a certain time interval.

In order to ensure the normal transmission of data among the devices in the whole monitoring system and the timeliness of monitoring and alarming, the video monitoring device in each monitoring subsystem is further used for: and when the data transmission between the video monitoring equipment of the monitoring subsystem and the linkage video monitoring equipment and between the video monitoring equipment of the monitoring subsystem and the gas monitoring device connected with the video monitoring equipment is interrupted, alarming.

In this embodiment, the video monitoring device in each monitoring subsystem is further configured to receive and display gas monitoring information, where the gas monitoring information is sent by the gas monitoring device in the monitoring subsystem. The monitoring information includes: the method includes acquiring a concentration of a predetermined monitored gas by a gas monitoring device, an identification of the gas monitoring device, and location information of the gas monitoring device.

In practical application, the data transmission between the monitoring master device and the monitoring slave device comprises the following steps:

step one, the monitoring master equipment and the monitoring slave equipment continuously check communication interfaces with other monitoring master equipment and monitoring slave equipment, if data transmission and receiving between the associated master equipment and the associated slave equipment are abnormal, an alarm is triggered, and an alarm data packet is not sent;

and step two, if new data is detected to arrive, reading the received data information. Otherwise, continuing to wait for the data sent by other equipment;

step three, judging whether to respond according to the identity in the received data packet;

step four, as shown in fig. 4, the monitoring master device makes different judgments according to the identity:

(1) the monitoring master device can identify the data packet with the first two identification numbers of the master device as the identification number of the master device, and responds: analyzing the main data of the monitoring information, and only reading and displaying the monitoring information if the data is non-alarm data; if the alarm data is alarm data, linkage alarm is carried out, the first two digits of the identity identification in the alarm information data packet are converted into the identity identification number of the main equipment, the second two digits of the identity identification are converted into '00', the alarm information is transmitted to other equipment, and the 'other equipment' comprises other monitoring slave equipment connected with the 'other equipment' and monitoring main equipment in other monitoring subsystems.

(2) The monitoring main equipment can identify the data packet with the two bits being '00' after the identity mark, namely the alarm information sent by other monitoring main equipment, and responds: analyzing the monitoring information main data to obtain monitoring alarm information and a linkage alarm range threshold value Y of the alarm event; calculating the distance x between the abnormal gas position information and the monitoring main equipment; if the distance x is within the range of the threshold value Y, performing linkage alarm, converting the first two digits of the identity identifier in the alarm information data packet into the number of the identity identifier of the monitoring main equipment, converting the last two digits into '00', and transmitting the alarm information to other equipment; and if the distance x is out of the range of the threshold value Y, the linkage alarm is not triggered. The "other devices" mentioned above include other monitoring slaves connected thereto, as well as monitoring masters in other monitoring subsystems.

Step five, fig. 5 is a flow chart of making a judgment according to the identity after the monitoring slave device receives the data packet, and the monitoring slave device can only perform linkage alarm on the alarm information transmitted by the monitoring master device to which the monitoring slave device belongs, that is, the first two bits of the identity are the number of the identity of the monitoring master device, and the last two bits are the data packet of "00", so as to realize star topology network transmission of the alarm information, as shown in fig. 3.

Suppose that two monitoring master devices with the respective identifiers of "0100" and "0200" exist in the work site, the identifiers of the two monitoring slave devices of the monitoring master device "0100" are respectively "0101" and "0102", and the identifiers of the two monitoring slave devices of the monitoring master device "0200" are respectively "0201" and "0202".

The monitoring slave device "0101" sends monitoring data, and only triggers the monitoring master device "0100" to respond. The monitoring master equipment '0100' analyzes the monitoring information data:

(1) if the data is non-alarm data, only reading and displaying the monitoring information;

(2) if the alarm data is alarm data, linkage alarm is carried out, the alarm data packet with the identity mark of '0100' is transmitted to other equipment, the linkage alarm of '0102' of the monitoring slave equipment is triggered, the analysis of the monitoring information data is triggered by '0200' of the monitoring master equipment, and if the alarm data is within the alarm range, the linkage alarm of the master equipment and the slave equipment is triggered.

In this embodiment, the monitoring slave device can only recognize the alarm information transmitted by the monitoring master device to which the monitoring slave device belongs, that is, if the first two digits of the identification are the identification number of the monitoring master device to which the monitoring slave device belongs and the last two digits are "00", the linked alarm is triggered.

The appearance diagrams of the video monitoring apparatus and the gas monitoring device in the present embodiment are shown in fig. 6 and 7, respectively. The video monitoring equipment (namely, the monitoring main equipment) mainly completes tasks of video monitoring, remote image transmission and the like of an operation site. The video monitoring equipment comprises a shell, a camera, a pan-tilt controller, a CPU processing circuit, a positioning circuit, a remote image transmission circuit, an alarm circuit, a communication circuit, a synchronization circuit, a power circuit, an information storage circuit, an information acquisition circuit and the like. The gas monitoring device (namely monitoring slave equipment) mainly completes the tasks of detection of gases such as hydrogen sulfide, combustible gas, oxygen, carbon monoxide and the like, transmission of alarm gas data and position information and the like on an operation site. The monitoring master device can be associated with a plurality of monitoring slave devices to work, and monitoring information of a plurality of monitoring points is displayed on the monitoring screen.

The information sent between the devices in each monitoring subsystem mainly comprises gas monitoring information and position information, and the identity of each device is inserted into the information. The identity of the monitoring slave equipment is not rewritable and is built in an internal chip in advance. The identity of the monitoring slave device can be associated with different monitoring master devices in advance. Under the condition that the gas environment monitored by the monitoring slave equipment is normal, the monitoring slave equipment only sends gas monitoring data and the identity of the monitoring slave equipment to the monitoring master equipment; when gas abnormity (such as gas standard exceeding) is monitored, the monitoring slave device sends alarm information of the gas abnormity to the monitoring master device, wherein the alarm information comprises gas concentration, abnormal positions and self identity marks. The monitoring slave device can only send a data packet containing the identity of the monitoring slave device.

Correspondingly to the above embodiment, the present invention further provides an operation safety monitoring and alarming method, which is applied to the operation safety monitoring and alarming system described in this embodiment, and as shown in fig. 8, the method includes:

the following operations are carried out on the working area corresponding to each monitoring subsystem:

s101, monitoring the operation safety of the operation area, alarming when the operation safety of the operation area is monitored to be abnormal, and generating alarm information;

and S102, sending the alarm information to a linkage monitoring subsystem so that the linkage monitoring subsystem gives an alarm according to the alarm information, wherein the linkage monitoring subsystem is a preset other monitoring subsystem connected with the monitoring subsystem.

In this embodiment, a certain linkage monitoring subsystem can also transmit alarm information to other monitoring subsystems again to realize that the alarm information is transmitted in a star topology structure manner, and realize linkage alarm in a certain area range.

The specific implementation flows of the above method and other contents related to the specific implementation modes can be referred to the specific implementation modes of the operation safety monitoring alarm system provided by the invention, and the detailed description of the same technical contents is omitted here.

The operation safety monitoring and alarming system and the alarming method divide the operation safety monitoring and alarming system into a plurality of monitoring subsystems, each monitoring subsystem monitors the operation safety of an operation area corresponding to the monitoring subsystem, alarms when the operation safety of the operation area is monitored to be abnormal, generates alarming information and sends the alarming information to the linkage monitoring subsystem, so that the linkage monitoring subsystem and the monitoring subsystem perform linkage alarming together according to the alarming information. Compared with the prior art, the technical scheme of the invention does not need to transmit the alarm information through a central control system, but directly transmits the alarm information among the monitoring subsystems, thereby reducing the system delay and greatly improving the transmission efficiency of the alarm information. Therefore, the technical scheme provided by the invention can alarm in time within a preset range taking the safety abnormal position as the center, thereby greatly improving the timeliness of linkage alarm.

The invention aims to provide a wireless communication linkage alarm mechanism between functional split type monitoring equipment systems. The monitoring master device mainly collects video image information of an operation site, monitors unsafe behaviors of the site, and can be matched with a plurality of monitoring slave devices to monitor a gas environment in a certain range. The monitoring slave equipment can monitor and transmit gas abnormal information, can quickly identify the relevance of the equipment through a simple identity identification process, and judges whether to carry out linkage alarm or not. By modulating and monitoring the identity identification number of the master equipment, the free combination between the master equipment and the slave equipment can be realized, and the combination flexibility of a split mode is enhanced. Meanwhile, the monitoring main equipment can transmit alarm information to other monitoring main equipment, linkage alarm of equipment within an influence range is achieved according to a preset equipment area linkage alarm rule, the alarm information is effectively transmitted in a star topology network mode, and the problems that on-site signal shielding of enterprises is serious and signal transmission distance is limited are solved. Through the communication mechanism, the alarm information can be transmitted and responded among the devices without being fed back to an enterprise monitoring terminal, the condition that the current field alarm fails is improved, field personnel are reminded to take emergency measures in time, and the occurrence of personnel injury accidents is effectively reduced.

The invention can be used for the safety supervision of the operation site in the petroleum refining industry, and is a wireless communication mechanism established on split type multifunctional monitoring equipment. The intelligent monitoring system can realize effective transmission of operation field gas monitoring alarm information, networking association and linkage alarm among equipment, form area monitoring coverage, solve the problems of wide coverage and small alarm range of monitoring equipment, improve the timeliness of emergency response, and continuously improve the intelligent safety supervision level of petrochemical enterprises.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.

Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.