阅读说明：本技术 一种校园入侵检测系统及方法 (Campus intrusion detection system and method ) 是由 杜乘希 黄小小 于 2019-12-17 设计创作，主要内容包括：本发明提供一种校园入侵检测系统及方法，属于无线通信技术领域。校园入侵检测系统，包括：主机、多个红外探测传感器以及多个红外障碍检测传感器，多个红外探测传感器以及多个红外障碍检测传感器分别部署在校园的多个指定探测点；主机与多个红外探测传感器以及多个红外障碍检测传感器之间均通过远距离LoRa通信技术通信连接。本发明可以通过远距离LoRa通信技术实现远距离的入侵检测，提高校园的安全系数。(The invention provides a campus intrusion detection system and method, and belongs to the technical field of wireless communication. A campus intrusion detection system comprising: the system comprises a host, a plurality of infrared detection sensors and a plurality of infrared obstacle detection sensors, wherein the infrared detection sensors and the infrared obstacle detection sensors are respectively arranged at a plurality of designated detection points on a campus; the host computer and a plurality of infrared detection sensors and a plurality of infrared obstacle detection sensors are all connected through long-distance LoRa communication technology communication. The invention can realize remote intrusion detection by a remote LoRa communication technology and improve the safety coefficient of a campus.)

1. A campus intrusion detection system, comprising: the system comprises a host, a plurality of infrared detection sensors and a plurality of infrared obstacle detection sensors, wherein the infrared detection sensors and the infrared obstacle detection sensors are respectively deployed at a plurality of designated detection points on a campus; the host is in communication connection with the infrared detection sensors and the infrared obstacle detection sensors through a long-distance LoRa communication technology;

the infrared detection sensor is used for detecting whether organisms exist according to infrared signals emitted by detected organisms and generating detection signals;

the infrared obstacle detection sensor comprises a transmitter and a receiver, wherein the receiver is used for detecting whether infrared information sent by the transmitter is received or not and generating a detection signal according to a receiving result;

the host computer is used for receiving the infrared detection sensor with the infrared obstacle detection sensor sends through loRa communication technology the detection signal, and confirm the invasion information based on the detection signal, and send alarm information according to the invasion information.

2. The system of claim 1, wherein the host comprises: the alarm device comprises a processor, a display screen and an alarm; the display screen and the alarm are both connected with the processor;

the processor is specifically configured to receive detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through an LoRa communication technology, and determine intrusion information based on the detection signals;

the processor is also used for controlling the display screen to display the intrusion information and controlling the alarm to send alarm information according to the intrusion information.

3. The system of claim 1, wherein the infrared detection sensor comprises: the system comprises an infrared detector, a first LoRa communication module, a first processing module, a first address dial switch and a battery pack;

the infrared detector is electrically connected with the first processing module;

one end of the first LoRa communication module is in communication connection with the host through an antenna, and the other end of the first LoRa communication module is electrically connected with the first processing module through a first address dial switch;

the battery assembly is electrically connected with the first processing module.

4. The system of claim 1, wherein the receiver comprises: the system comprises an infrared photoelectric switch, a second LoRa communication module, a second processing module, a first rechargeable battery, a second address dial switch and a first solar panel;

one end of the infrared photoelectric switch is in communication connection with the emitter, and the other end of the infrared photoelectric switch is electrically connected with the second processing module;

one end of the second LoRa communication module is in communication connection with the host through an antenna, and the other end of the second LoRa communication module is electrically connected with the second processing module through a second address dial switch;

one end of the first rechargeable battery is charged through the first solar panel, and the other end of the first rechargeable battery is electrically connected with the second processing module.

5. The system of claim 1 or 4, wherein the transmitter comprises: the infrared transmitting tube, the transmitting control circuit, the second rechargeable battery and the second solar panel;

one end of the infrared transmitting tube is in communication connection with the receiver, and the other end of the infrared transmitting tube is electrically connected with the transmitting control circuit;

one end of the second rechargeable battery is charged through the second solar panel, and the other end of the second rechargeable battery is electrically connected with the sending control circuit.

6. The system of claim 1, wherein the intrusion information comprises: and (4) intrusion positioning information.

7. A campus intrusion detection method applied to the system of any one of claims 1 to 6, the method comprising:

the infrared detection sensor detects whether organisms exist according to infrared signals emitted by detected organisms and generates detection signals;

the receiver of the infrared obstacle detection sensor detects whether the infrared information sent by the transmitter is received or not, and generates a detection signal according to a receiving result;

the host computer receives the infrared detection sensor with the detection signal that infrared obstacle detection sensor sent through loRa communication technology, and based on the detection signal confirms invasion information, and according to invasion information sends alarm information.

8. The method of claim 7, wherein the host comprises: the alarm device comprises a processor, a display screen and an alarm; the display screen and the alarm are both connected with the processor;

the host computer receives infrared detection sensor with infrared obstacle detection sensor passes through the detection signal that loRa communication technology sent, and is based on detection signal confirms intrusion information, and according to intrusion information sends alarm information, includes:

the processor receives detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through an LoRa communication technology, and determines intrusion information based on the detection signals;

the processor controls the display screen to display the intrusion information and controls the alarm to send alarm information according to the intrusion information.

9. The method of claim 7, wherein the method further comprises:

the infrared detection sensor detects whether organisms exist according to infrared signals emitted by detected organisms and generates detection signals;

the receiver of the infrared obstacle detection sensor detects whether the infrared information sent by the transmitter is received or not, and generates a detection signal according to a receiving result.

10. The method according to claim 7, wherein the signal transmission channel between the host and the infrared detection sensor and the infrared obstacle detection sensor comprises a plurality of uplink channels and a downlink channel, the plurality of uplink channels respectively correspond to the infrared detection sensor and the infrared obstacle detection sensor;

the host computer receives infrared detection sensor with the detection signal that infrared obstacle detection sensor sent through loRa communication technology includes:

and the host machine receives the detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through a plurality of uplink channels respectively.

Technical Field

The invention relates to the technical field of wireless communication, in particular to a campus intrusion detection system and method.

Background

Currently, in campus construction, it is generally necessary to prevent foreign persons from entering into the school by constructing a campus intrusion detection system.

Disclosure of Invention

The invention aims to provide a campus intrusion detection system and a campus intrusion detection method, which can realize remote intrusion detection through a remote LoRa communication technology and improve the campus safety coefficient.

The embodiment of the invention is realized by the following steps:

in one aspect of the embodiments of the present invention, a campus intrusion detection system is provided, including: the system comprises a host, a plurality of infrared detection sensors and a plurality of infrared obstacle detection sensors, wherein the infrared detection sensors and the infrared obstacle detection sensors are respectively arranged at a plurality of designated detection points on a campus; the host computer and a plurality of infrared detection sensor and a plurality of infrared obstacle detection sensor all pass through long-range loRa communication technology communication connection.

And the infrared detection sensor is used for detecting whether organisms exist according to the emitted infrared detection signal and generating a detection signal.

The infrared obstacle detection sensor includes a transmitter and a receiver for detecting whether or not infrared information transmitted from the transmitter is received, and generating a detection signal according to the reception result.

The host is used for receiving detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through an LoRa communication technology, determining intrusion information based on the detection signals, and sending alarm information according to the intrusion information.

Optionally, the host comprises: the alarm device comprises a processor, a display screen and an alarm; the display screen and the alarm are both connected with the processor.

And the processor is specifically used for receiving detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through an LoRa communication technology and determining the intrusion information based on the detection signals.

And the processor is also used for controlling the display screen to display the intrusion information and controlling the alarm to send alarm information according to the intrusion information.

Optionally, the infrared detection sensor comprises: infrared detector, first loRa communication module, first processing module, first address dial switch, battery pack.

The infrared detector is electrically connected with the first processing module.

One end of the first LoRa communication module is in communication connection with the host through an antenna, and the other end of the first LoRa communication module is electrically connected with the first processing module through a first address dial switch.

The battery assembly is electrically connected with the first processing module.

Optionally, the receiver comprises: infrared photoelectric switch, second loRa communication module, second processing module, first rechargeable battery, second address dial switch, first solar energy electroplax.

One end of the infrared photoelectric switch is in communication connection with the emitter, and the other end of the infrared photoelectric switch is electrically connected with the second processing module.

One end of the second LoRa communication module is in communication connection with the host through an antenna, and the other end of the second LoRa communication module is electrically connected with the second processing module through a second address dial switch.

One end of the first rechargeable battery is charged through the first solar panel, and the other end of the first rechargeable battery is electrically connected with the second processing module.

Optionally, the transmitter comprises: the infrared transmitting tube, the transmitting control circuit, the second rechargeable battery and the second solar panel.

One end of the infrared transmitting tube is in communication connection with the receiver, and the other end of the infrared transmitting tube is electrically connected with the transmitting control circuit.

One end of the second rechargeable battery is charged through the second solar panel, and the other end of the second rechargeable battery is electrically connected with the sending control circuit.

Optionally, the intrusion information includes: and (4) intrusion positioning information.

In another aspect of the present invention, a campus intrusion detection method is further provided, which is applied to a campus intrusion detection system, and the method includes:

the infrared detection sensor detects whether the organism exists according to an infrared signal emitted by the detected organism and generates a detection signal;

a receiver of the infrared obstacle detection sensor detects whether infrared information sent by a transmitter is received or not, and generates a detection signal according to a receiving result;

the host computer receives the detection signal that infrared detection sensor and infrared obstacle detection sensor sent through loRa communication technology to confirm the invasion information based on the detection signal, and send alarm information according to the invasion information.

Optionally, the host computer receives the detection signal that infrared detection sensor and infrared obstacle detection sensor sent through LoRa communication technology to confirm intrusion information based on the detection signal, and send alarm information according to intrusion information, include:

the processor receives detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through an LoRa communication technology, and determines intrusion information based on the detection signals;

the processor controls the display screen to display the intrusion information and controls the alarm to send alarm information according to the intrusion information.

Optionally, the method further comprises:

the infrared detection sensor detects whether the organism exists according to an infrared signal emitted by the detected organism and generates a detection signal;

the receiver of the infrared obstacle detection sensor detects whether the infrared information sent by the transmitter is received or not, and generates a detection signal according to the receiving result.

Optionally, the signal transmission channel between the host and the infrared detection sensor and the infrared obstacle detection sensor includes a plurality of uplink channels and a downlink channel, and the plurality of uplink channels correspond to the infrared detection sensor and the infrared obstacle detection sensor respectively;

the host computer receives the detection signal that infrared detection sensor and infrared obstacle detection sensor sent through loRa communication technology, includes:

the host machine receives detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through a plurality of uplink channels respectively.

The embodiment of the invention has the beneficial effects that:

according to the campus intrusion detection system and method provided by the embodiment of the invention, a plurality of detection sensors are deployed at a plurality of designated detection points of a campus to carry out intrusion detection, and the remote LoRa communication technology is in communication connection with a host to send out an alarm signal, so that remote intrusion detection can be realized, the campus safety coefficient is improved, and the campus intrusion detection system and method are more suitable for a campus scene with larger area and higher security requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a campus intrusion detection system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a host according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an infrared detection sensor provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a receiver of an infrared obstacle detection sensor according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an emitter of an infrared obstacle detection sensor according to an embodiment of the present invention;

fig. 6 is a schematic flowchart of a campus intrusion detection method according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating host processing according to an embodiment of the present invention.

Icon: 100-a host; 110-a processor; 120-a display screen; 130-an alarm; 200-infrared obstacle detection sensor; 210-an infrared detection sensor; 211-an infrared detector; 212-a first LoRa communication module; 213-a first processing module; 214-a first address dial switch; 215-a battery assembly; 220-a transmitter; 221-infrared transmitting tube; 222-a transmission control circuit; 223-a second rechargeable battery; 224-a second solar panel; 230-a receiver; 231-infrared photoelectric switch; 232-a second LoRa communication module; 233-a second processing module; 234-a first rechargeable battery; 235-a second address dial switch; 236-first solar panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Fig. 1 is a schematic structural diagram of a campus intrusion detection system according to an embodiment of the present invention, and referring to fig. 1, an embodiment of the present invention provides a campus intrusion detection system, including: the system comprises a host 100, a plurality of infrared detection sensors 210 and a plurality of infrared obstacle detection sensors 200, wherein the plurality of infrared detection sensors 210 and the plurality of infrared obstacle detection sensors 200 are respectively deployed at a plurality of designated detection points on a campus; the host 100 is communicatively connected to the plurality of infrared detection sensors 210 and the plurality of infrared obstacle detection sensors 200 by Long Range Radio (Long Range Radio) communication technology.

It should be noted that the infrared detection sensor 210 may be deployed in an area that needs to be detected in real time, such as an underground parking lot, an entrance of a teaching building, etc.; the infrared obstacle detection sensor 200 may be disposed in an area communicating with the outside, such as a doorway, a guardrail, a fence, or the like of a campus. The infrared detection sensor 210 and the infrared obstacle detection sensor 200 may have a predetermined detection range, and in the detection range, when the infrared detection sensor 210 and the infrared obstacle detection sensor 200 detect an intruding object, a detection signal may be generated and transmitted to the host 100. The invader can be a person or other preset invader.

The host 100 is configured to receive detection signals sent by the infrared detection sensor 210 and the infrared obstacle detection sensor 200 through the LoRa communication technology, determine intrusion information based on the detection signals, and send alarm information according to the intrusion information.

It should be noted that the probe signal transmitted by the LoRa communication technology propagates relatively farther under the same power consumption condition. The host 100 and the plurality of infrared detection sensors 210 and the plurality of infrared obstacle detection sensors 200 receive or transmit detection signals through an antenna. After receiving the probe signal, the host 100 may determine intrusion information according to the probe signal. The host 100 is further configured to send alarm information according to the intrusion information, indicating that the infrared detection sensor 210 and the infrared obstacle detection sensor 200 detect that an intruder enters the detection range. In addition, the alarm information may be an alarm message generated according to a preset message protocol, or may be an alarm instruction, such as sound, text, and the like.

According to the campus intrusion detection system provided by the embodiment of the invention, a plurality of detection sensors are deployed at a plurality of designated detection points of a campus for intrusion detection, and the remote LoRa communication technology is used for being in communication connection with a host to send out an alarm signal, so that remote intrusion detection can be realized, the safety coefficient of the campus is improved, and the campus intrusion detection system is more suitable for a scene with larger area and higher security requirement of the campus.

Fig. 2 is a schematic structural diagram of a host according to an embodiment of the present invention, and referring to fig. 2, in an embodiment of the present invention, the host 100 includes: a processor 110, a display screen 120, and an alarm 130; the display 120 and the alarm 130 are both connected to the processor 110.

The processor 110 is specifically configured to receive detection signals transmitted by the infrared detection sensor 210 and the infrared obstacle detection sensor 200 through a long-distance communication technology, and determine intrusion information based on the detection signals.

And the processor 110 is further configured to control the display screen 120 to display intrusion information according to the intrusion information, and control the alarm 130 to send alarm information.

It should be noted that the processor 110 at least includes a CPU, a power supply, an interface, and an LoRa communication unit; wherein, the LoRa communication unit receives or transmits the detection signal through the antenna.

The display 120 may include a touch-sensitive liquid crystal display as well as a computer display. The touch liquid crystal display screen is directly connected with the processor 110; the computer display is connected with the interface of the processor through the serial port. The touch screen type liquid crystal display screen is used for displaying a detection sensor which sends out a detection signal; the computer display can be combined with a scene map to truly reflect the specific scene of the detection area which sends out the detection signal in reality. In addition, each display screen 120 may display information such as the position, address, and alarm condition of each infrared detection sensor 210 and infrared obstacle detection sensor 200.

The alarm 130 may be an alarm device capable of sounding an alarm or a signal lamp capable of emitting a warning light, and the like, and is not particularly limited herein. Alternatively, the alarm 130 may be a communication device, for example, a terminal of a monitoring person may send a prompt message or dial a voice.

Fig. 3 is a schematic structural diagram of an infrared detection sensor according to an embodiment of the present invention, and referring to fig. 3, in an embodiment of the present invention, an infrared detection sensor 210 includes: the infrared detector 211, the first LoRa communication module 212, the first processing module 213, the first address dial switch 214, and the battery assembly 215.

The infrared detector 211 is electrically connected to the first processing module 213. One end of the first LoRa communication module 212 is in communication connection with the host 100 through an antenna, and the other end is electrically connected with the first processing module 213 through the first address dial switch 214. The battery assembly 215 is electrically connected to the first processing module 213.

It should be noted that the infrared detector 211 is configured to detect whether a living being exists according to the emitted infrared detection signal, and if the living being exists, the infrared detector feeds back the detected living being to the first processing module 213, and controls the first LoRa communication module 212 to emit the detection signal and transmit the detection signal to the host 100. The first LoRa communication module 212 may further receive a detection signal sent by the host 100, where the detection signal is used to obtain a working state of the infrared detection sensor 210, including information such as working power, standby time, and damage condition; the first processing module 213 includes a battery level detection circuit for detecting the operating state of the infrared detection sensor 210 according to the detection signal. The first address dial switch 214 is configured to transmit the address of each infrared detection sensor 210 to the host 100 through the first LoRa communication module 212. In addition, the battery assembly 215 is used to power the infrared detector 211.

The infrared obstacle detection sensor 200 includes a transmitter 220 and a receiver 230, and the receiver 230 is configured to detect whether infrared information transmitted from the transmitter 220 is received and generate a detection signal according to the reception result. Fig. 4 is a schematic structural diagram of a receiver of an infrared obstacle detection sensor according to an embodiment of the present invention, and referring to fig. 4, in an embodiment of the present invention, the receiver 230 includes: infrared photoelectric switch 231, second LoRa communication module 232, second processing module 233, first rechargeable battery 234, second address dial switch 235, first solar panel 236.

One end of the infrared photoelectric switch 231 is communicatively connected to the transmitter 220, and the other end is electrically connected to the second processing module 233. One end of the second LoRa communication module 232 is in communication connection with the host 100 through an antenna, and the other end is electrically connected with the second processing module 233 through a second address dial switch 235. One end of the first rechargeable battery 234 is charged through the first solar cell 236, and the other end is electrically connected to the second processing module 233.

It should be noted that the transmitter 220 may send an infrared photoelectric signal, the receiver 230 may receive the infrared photoelectric signal, and if the receiver 230 does not receive the infrared photoelectric signal after the transmitter 220 sends the infrared photoelectric signal, it indicates that the signal is blocked, that is, it is detected that a living being exists. The infrared photoelectric switch 231 is configured to receive an infrared photoelectric signal sent by the transmitter 220, and if it is detected that a living being exists, feed back the infrared photoelectric signal to the second processing module 233, and control the second LoRa communication module 232 to send out a detection signal and transmit the detection signal to the host 100. The second LoRa communication module 232 may further receive a detection signal sent by the host 100, where the detection signal is used to obtain an operating state of the receiver 230 of the infrared obstacle detection sensor, including information such as operating power, standby time, and damage condition. The second address dial switch 235 is used to transmit the address of the receiver 230 of each infrared obstacle detection sensor to the host 100 through the second LoRa communication module 232. In addition, the first rechargeable battery 234 is used to power the receiver 230, and the first solar panel 236 is used to charge the first rechargeable battery 234.

It should be noted that the first LoRa communication module 212 and the second LoRa communication module 232 may both have two communication channels, one fixed frequency point is used as a signal receiving channel, and the other one uses dynamic frequency hopping as a transmitting channel.

Fig. 5 is a schematic structural diagram of an emitter of an infrared obstacle detection sensor according to an embodiment of the present invention, referring to fig. 5, in an embodiment of the present invention, an emitter 220 includes: an infrared transmission pipe 221, a transmission control circuit 222, a second rechargeable battery 223, and a second solar panel 224.

One end of the infrared transmission tube 221 is connected to the receiver 230 in communication, and the other end is electrically connected to the transmission control circuit 222. One end of the second rechargeable battery 223 is charged through the second solar cell panel 224, and the other end is electrically connected to the transmission control circuit 222.

It should be noted that the transmission control circuit 222 may control the infrared transmitting pipe 221 to transmit the infrared photoelectric signal at a certain time interval according to specific requirements. In addition, a second rechargeable battery 223 is used to supply power to the transmitter 220, and a second solar cell panel 224 is used to charge the second rechargeable battery 223.

Optionally, the intrusion information includes: and (4) intrusion positioning information.

It should be noted that the intrusion positioning information may indicate a detection area where the intrusion object intrudes and information such as positions and addresses of the infrared detection sensor 210 and the infrared obstacle detection sensor 200 corresponding to the detection area, so that the monitoring personnel can quickly position a position where there is a possibility of danger to check the position.

In addition, fig. 6 is a schematic flow chart of the campus intrusion detection method according to the embodiment of the present invention, and referring to fig. 6, another aspect of the embodiment of the present invention further provides a campus intrusion detection method applied to a campus intrusion detection system, where the method includes:

s10: the infrared detection sensor detects whether organisms exist according to the emitted infrared detection signal and generates a detection signal;

s20: a receiver of the infrared obstacle detection sensor detects whether infrared information sent by a transmitter is received or not, and generates a detection signal according to a receiving result;

s30: the host computer receives the detection signal that infrared detection sensor and infrared obstacle detection sensor sent through loRa communication technology to confirm the invasion information based on the detection signal, and send alarm information according to the invasion information.

Fig. 7 is a flowchart illustrating host processing according to an embodiment of the present invention, and referring to fig. 7, in an embodiment of the present invention, S30: the host computer receives the detection signal that infrared detection sensor and infrared obstacle detection sensor sent through loRa communication technology to confirm invasion information based on the detection signal, and send alarm information according to invasion information, include:

s31: the processor receives detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through the LoRa communication technology, and determines intrusion information based on the detection signals.

S32: the processor controls the display screen to display the intrusion information and controls the alarm to send alarm information according to the intrusion information.

Further, on the basis of the above-described embodiment, the infrared detection sensor detects the presence or absence of a living organism based on the emitted infrared detection signal, and generates a detection signal.

The receiver of the infrared obstacle detection sensor detects whether the infrared information sent by the transmitter is received or not, and generates a detection signal according to the receiving result.

The specific structures and implementations of the infrared detection sensor and the infrared obstacle detection sensor may refer to the foregoing system embodiments, and are not described herein again.

Optionally, the signal transmission channel between the host and the infrared detection sensor and the signal transmission channel between the host and the infrared obstacle detection sensor include a plurality of uplink channels and a downlink channel, and the plurality of uplink channels correspond to the infrared detection sensor and the infrared obstacle detection sensor, respectively.

The host computer receives the detection signal that infrared detection sensor and infrared obstacle detection sensor sent through loRa communication technology, includes:

the host machine receives detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through a plurality of uplink channels respectively.

It should be noted that all the infrared detection sensors and the infrared obstacle detection sensors can receive data when the host sends data. The number of the uplink channels can be 8, and the number of the downlink channels is 1; the host machine receives detection signals sent by the infrared detection sensor and the infrared obstacle detection sensor through a plurality of uplink channels respectively; the infrared detection sensor and the infrared obstacle detection sensor receive detection signals sent by the host through the downlink channel.

In addition, after the infrared detection sensor and the infrared obstacle detection sensor send detection signals, if the receiving confirmation message of the host is not received within the set time, other channels are selected from the 8 uplink channels to send the detection signals until the data are successfully sent.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.