阅读说明：本技术 一种电梯限速器远程校验系统 (Remote calibration system for elevator speed limiter ) 是由 梁敏健 曾健生 戚政武 彭晓军 陈英红 林晓明 杨宁祥 陈永煊 于 2019-10-21 设计创作，主要内容包括：本发明公开一种电梯限速器远程校验系统,包括远程客户端、主控单元以及分别与主控单元电性连接的摄像头、无线通信单元、信号采集单元和显示单元,远程客户端与无线通信单元无线连接,远程客户端内置有二维码生成模块,信号采集单元分别电性连接有旋转编码器和带有编码器的电机,信号采集单元还设置有用于连接电梯限速器电气开关的第一接口,电机连接有驱动轮,旋转编码器连接有接触胶轮。本发明通过摄像头获取电梯限速器的铭牌信息,电机用于驱动电梯限速器,通过电机的编码器获取电机的转速,通过旋转编码器获取限速器的转速,通过主控单元进行数据处理,对维保人员的技术水平依赖程度低,有效提高检验的效率和准确性。(The invention discloses a remote checking system for an elevator speed limiter, which comprises a remote client, a main control unit, a camera, a wireless communication unit, a signal acquisition unit and a display unit, wherein the camera, the wireless communication unit, the signal acquisition unit and the display unit are respectively and electrically connected with the main control unit, the remote client is wirelessly connected with the wireless communication unit, a two-dimensional code generation module is arranged in the remote client, the signal acquisition unit is respectively and electrically connected with a rotary encoder and a motor with the encoder, the signal acquisition unit is also provided with a first interface used for connecting an electric switch of the elevator speed limiter, the motor is connected with a driving wheel, and the. According to the elevator speed limiter, the nameplate information of the elevator speed limiter is acquired through the camera, the motor is used for driving the elevator speed limiter, the rotating speed of the motor is acquired through the encoder of the motor, the rotating speed of the speed limiter is acquired through the rotary encoder, data processing is performed through the main control unit, the technical level dependence degree on maintenance personnel is low, and the inspection efficiency and accuracy are effectively improved.)

1. The utility model provides a long-range check-up system of elevator overspeed governor which characterized in that: including remote client, main control unit (1) and respectively with main control unit (1) electric connection's camera (2), wireless communication unit (3), signal acquisition unit (4) and display element (5), remote client with wireless communication unit (3) wireless connection, remote client embeds there is two-dimensional code generation module, signal acquisition unit (4) electric connection has rotary encoder (6) and motor (7) that have the encoder respectively, signal acquisition unit (4) still are provided with first interface (8) that are used for connecting elevator overspeed governor electrical switch, motor (7) are connected with drive wheel (71), rotary encoder (6) are connected with contact rubber tyer (61).

2. The elevator governor remote verification system of claim 1, wherein: the main control unit (1) is also connected with a GPS positioning unit (9).

3. The elevator governor remote verification system of claim 1, wherein: the rotary encoder is characterized by further comprising a support (10), wherein the rotary encoder (6) is arranged at the upper end of the support (10).

4. The elevator governor remote verification system of claim 3, wherein: the bottom of the bracket (10) is connected with a magnetic base (11).

5. The elevator governor remote verification system of claim 4, wherein: the magnetic base (11) adopts a switch type magnetic base.

6. The elevator governor remote verification system of claim 1, wherein: the display unit (5) adopts a touch display screen.

Technical Field

The invention relates to the technical field of measuring equipment, in particular to a remote checking system for an elevator speed limiter.

Background

The speed limiter is an important safety control part in an elevator safety system and comprises an electrical switch and a mechanical rope clamping device, wherein the electrical switch of the speed limiter sends an electrical signal to cut off a control loop when an elevator is out of control or exceeds speed, a motor is de-energized and a brake is braked, and when the speed still rises, the mechanical rope clamping device of the speed limiter mechanically operates a safety clamp to stop a car on a guide rail. The accuracy and reliability of the device are related to the life safety of passengers.

The traditional speed limiter test method comprises the following steps: checking the speed governor action speed check record, and judging whether the check result meets the requirement or not by comparing with related parameters on a speed governor nameplate; for the elevator with the rated speed less than 3m/s, the inspector needs to observe and confirm the verification process of the maintenance unit once every 2 years.

However, in the conventional inspection method, an inspector needs to go to the site and perform the site verification, supervision and confirmation of the speed limiter on each elevator in cooperation with a maintenance worker, and the inspection efficiency is reduced due to poor safety awareness, insufficient technical level and the like of the maintenance worker who is responsible for the cooperation, so that the inspection automation degree is low.

Disclosure of Invention

In view of the defects in the prior art, the invention aims to at least solve one technical problem in the prior art, and provides an elevator speed limiter remote checking system which is used for solving the problems of low checking efficiency and low automation degree of the traditional speed limiter checking mode.

The invention comprises the following contents:

the utility model provides a long-range check-up system of elevator overspeed governor, including long-range customer end, main control unit and respectively with main control unit electric connection's camera, wireless communication unit, signal acquisition unit and display element, long-range customer end with wireless communication unit wireless connection, long-range customer end embeds there is two-dimensional code to generate the module, signal acquisition unit electric connection has rotary encoder and the motor that has the encoder respectively, signal acquisition unit still is provided with the first interface that is used for connecting elevator overspeed governor electrical switch, the motor is connected with the drive wheel, rotary encoder is connected with the contact rubber tyer.

Preferably, the main control unit is further connected with a GPS positioning unit.

Preferably, the checking system further comprises a bracket, and the rotary encoder is arranged at the upper end of the bracket.

Preferably, a magnetic base is connected to the bottom of the bracket.

Furthermore, the magnetic base adopts a switch type magnetic base.

Preferably, the display unit adopts a touch display screen.

The invention has the beneficial effects that: the name plate information of the elevator speed limiter is acquired through the camera, the motor is used for driving the elevator speed limiter, the rotating speed of the motor is acquired through the encoder of the motor, the rotating speed of the speed limiter is acquired through the rotary encoder, and data processing is performed through the main control unit.

Drawings

FIG. 1 is a schematic block diagram of an embodiment of the present invention;

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

Detailed Description

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Referring to fig. 1-2, the elevator speed limiter remote calibration system disclosed in this embodiment includes a remote client (not shown), a main control unit 1, a camera 2 electrically connected to the main control unit 1, a wireless communication unit 3, a signal acquisition unit 4, and a display unit 5, the remote client is wirelessly connected to the wireless communication unit 3, a two-dimensional code generation module is built in the remote client, the signal acquisition unit 4 is electrically connected to a rotary encoder 6 and a motor 7 with an encoder, respectively, the signal acquisition unit 4 is further provided with a first interface 8 for connecting an electrical switch 12 of an elevator speed limiter, an output shaft of the motor 7 is connected to a driving wheel 71, and a rotating shaft of the rotary encoder 6 is connected to a contact rubber wheel 61.

In this embodiment, the main control unit 1 adopts an STM32 series single chip microcomputer and peripheral circuits thereof, and the wireless communication unit 3 adopts a mobile communication module, such as a 4G mobile communication module; the signal acquisition unit 4 adopts a signal acquisition device or a data acquisition board card, the display unit 5 can adopt the combination of a display screen and an input key, and also can adopt a touch display screen, the display unit 5 of the embodiment preferably adopts the touch display screen, the operation is simple, and the data display area can be increased.

This embodiment obtains the data plate information of elevator overspeed governor through camera 2, motor 7 is used for driving the elevator overspeed governor, the rotational speed of motor 7 is obtained to encoder through motor 7, because the output shaft of motor 7 and the coaxial setting of drive wheel 71, the rotational speed of motor 7 is the rotational speed of drive wheel 71 promptly, obtain the rotational speed of speed limiting wheel 13 of elevator overspeed governor through rotary encoder 6, carry out data processing through main control unit 1, compare with traditional inspection mode, this embodiment easy operation, it is low to the technical merit degree of dependence of dimension guarantor personnel, effectively improve efficiency and the accuracy of inspection.

The main control unit 1 is also connected with a GPS positioning unit 9, and the GPS positioning unit 9 can position maintenance personnel so as to remotely supervise the positions of the maintenance personnel.

Referring to fig. 2, the checking system further includes a bracket 10, the rotary encoder 6 is disposed at the upper end of the bracket 10, and the bracket 10 is used to support the rotary encoder 6, so that fatigue of maintenance personnel due to long-time holding of the rotary encoder 6 can be avoided, stable placement of the rotary encoder 6 can be ensured, and accuracy of data acquisition is improved.

In order to facilitate the installation of the support 10, the bottom of the support 10 is connected with a magnetic base 11, and when the support is used, the support 10 is adsorbed on an elevator speed limiter through the magnetic base 11, so that the support is convenient to install and detach. Furthermore, the magnetic base 11 adopts a switch type magnetic base, so that the magnetic base 11 can be prevented from adsorbing metal scraps when not in use.

The two-dimensional code generation module of this embodiment is used for generating the two-dimensional code that is used for the record measuring information, through using mobile device, like the cell-phone, scans the two-dimensional code and can look over test data, and the inspection personnel of being convenient for carry out looking over and sharing of data.

The working principle of the embodiment is as follows:

referring to fig. 2, when in use, the driving wheel 71 is in contact connection with the governor wheel 13 of the elevator governor, specifically, the driving wheel 71 is in contact connection with a wheel groove part 131 of the governor wheel 13; the rotary encoder 6 is fixed on one side of the elevator speed limiter through a bracket 10, and the contact rubber wheel 61 is in contact connection with a pitch circle part 132 of the speed limiting wheel 13; the first interface 8 is electrically connected with an electrical switch 12 of the elevator speed limiter; the GPS positioning unit 9 is started to perform position positioning, the camera 2 is started to shoot nameplate information of the speed limiter, such as factory number, model, type, theoretical action speed and the like, and parameter setting, such as elevator registration code, use unit, rated speed, speed limiter type, speed limiter action speed range and the like, is performed through the display unit 5.

The test is started, the motor 7 operates and accelerates the speed limiting wheel 13 through the driving wheel 71 until the electric switch acts, and the signal acquisition unit 4 records the speed V of the contact rubber wheel 61 at the moment₁And the speed V of the driving wheel 71_G1Then, the motor 7 is continuously controlled to accelerate until a mechanical switch (not shown) arranged in the elevator speed limiter operates, when the mechanical switch operates, the speed of the speed limiting wheel 13 suddenly drops from a peak value, and the speed V contacting with the rubber wheel 61 at the moment is recorded₂And the speed V of the driving wheel 71_G2。

Because the driving wheel 71 or the contact rubber wheel 61 slips in the detection process, the signal acquisition unit 4 sends the acquired data to the main control unit 1, the main control unit 1 checks the validity of the data, and if the speed of the driving wheel 71 is greater than that of the contact rubber wheel and the error is within 5 percent, namely the detection result is that

The data is valid, otherwise it is rechecked. The validity detection of the data can avoid inaccurate data caused by the slipping of the driving wheel 71 or the contact rubber wheel 61 and can also avoid the reproduction of measurement and data counterfeiting by maintenance personnel.

The main control unit 1 will adjust the speed V₁And velocity V_G1Into the electrical operating speed V of the speed limiter_{Electric appliance}Will speed V₂And velocity V_G2Into mechanical speed V of the governor_{Machine with a movable working part}I.e. by

The main control unit 1 sends the data to a remote client through the wireless communication unit 3, the remote client can generate a two-dimensional code with an anti-counterfeiting mark through the two-dimensional code generation module so as to verify the authenticity and validity of the data, and the two-dimensional code records measuring personnel, measuring time and testing position, elevator speed limiter nameplate photos, manufacturers, factory numbers, electrical action speed, mechanical action speed, checking whether the data is qualified or not and other testing data.

The inspection personnel check whether GPS position information is matched with the elevator installation position by checking whether the test data meets the requirements or not, check whether nameplate information of the speed limiter is consistent with the elevator archive information or not, and comprehensively judge whether the verification of the speed limiter is finished or not.

The elevator speed limiter testing system has the advantages that the elevator speed limiter testing system can test the elevator speed limiter on site through the maintenance personnel, test data are sent to the remote client, whether the supervision maintenance personnel arrive at the checking site or not can be judged through comparison of the test data, whether the maintenance personnel check the elevator speed limiter or not can be judged through comparison of the test data, compared with the traditional checking mode, the checking system can enable the checking personnel not to arrive at the site, remote monitoring on the speed limiter checking can be achieved, and the problem caused by copying of the past year report on the place where the maintenance personnel do not arrive at the site or actually do speed limiter checking when the maintenance personnel arrive at the site is solved. The method is beneficial to reducing the inspection time and the economic cost, reducing the labor intensity of inspection personnel and improving the automation degree and the inspection efficiency.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.