A tractor and trailer electrical connector contact arrangement detection device and method

Abstract

The application discloses a kind of tractor and trailer electric connector contact arrangement detection device and method, including man-machine interaction unit, contact on-off unit and light detection unit;Through man-machine interaction unit, operating information is input, and is sent to contact on-off unit and light detection unit by communication module;Contact on-off unit has tractor connection port, trailer connection port and circuit on-off module, and circuit on-off in circuit on-off module is controlled after receiving operating information;Light detection unit has vision sensor, and vision sensor carries out collection to trailer light signal, and result is transmitted to signal processing module;Signal processing module judges circuit interface according to the light type and switch state collected by vision sensor, and then judges whether circuit connection is correct.The detection means of the application is simple and easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric connection between tractor and trailer, in particular to a contact arrangement detection device and method of 24V 7-core electric connector between tractor and trailer. BACKGROUND

[0002] The national standard GB / T 5053.1-2006 stipulates the contact arrangement of 24V 7-core electric connector between tractor and trailer, which requires that contact 1 corresponds to public circuit, contact 2 corresponds to left rear position lamp, outline lamp and rear license plate lamp, contact 3 corresponds to left turn signal lamp, contact 4 corresponds to brake lamp, contact 5 corresponds to right turn signal lamp, contact 6 corresponds to right rear position lamp, outline lamp and rear license plate lamp, and contact 7 corresponds to trailer brake lamp. In order to realize the compliance detection of the above contact arrangement, a tractor and trailer electric connector contact arrangement detection device is needed to realize the compliance detection of the electric connector contact. SUMMARY

[0003] In order to realize the compliance detection of the above contact arrangement, the present application provides a tractor and trailer electric connector contact arrangement detection device and method, which can realize the automatic detection of the correctness of the electric connector connection.

[0004] The technical scheme of the present application is as follows:

[0005] A tractor and trailer electric connector contact arrangement detection device, comprising a man-machine interaction unit, a contact on-off unit and a light detection unit;

[0006] The man-machine interaction unit is composed of a shell one, a power module one, an operation button, a display screen, a communication module one and a signal processing module one; the signal processing module one is electrically connected with the operation button, the display screen and the communication module one; the signal processing module one displays on the display screen according to the operation instruction of the operation button, and the signal processing module one communicates with the contact on-off unit and the light detection unit through the communication module one;

[0007] The contact on-off unit is composed of a shell two, a power module two, a tractor wiring port, a trailer wiring port, a communication module two, a signal processing module two and a circuit on-off module; the circuit on-off module is a relay capable of realizing independent on-off of at least 7 circuits, the tractor wiring port has 7 circuit contacts connected with 7 input terminals of the circuit on-off module, and the trailer wiring port has 7 circuit contacts connected with 7 output terminals of the circuit on-off module; the signal processing module two is electrically connected with the circuit on-off module and the communication module two, the signal processing module two controls the on-off of each circuit in the circuit on-off module, and the signal processing module two realizes communication with the man-machine interaction unit through the communication module two;

[0008] The light detection unit is composed of a shell three, a power module three, a visual sensor, a communication module three and a signal processing module three; the visual sensor is electrically connected with the signal processing module three, the visual sensor collects the trailer light signal and transmits the collection result to the signal processing module three; the signal processing module three is electrically connected with the communication module three, the signal processing module three judges the type and on-off state of the trailer light according to the signal collected by the visual sensor, and then transmits the above processing result to the man-machine interaction unit through the communication module three.

[0009] Preferably, the signal processing module one, the signal processing module two and the signal processing module three are single-chip microcomputers.

[0010] Preferably, the communication module one, the communication module two and the communication module three are 2.4G wireless communication modules.

[0011] Preferably, the operation button is a mechanical key keyboard, the display screen is an LCD display screen, and the visual sensor is a CMOS camera.

[0012] Preferably, the circuit on-off module comprises at least 7 input terminals and 7 output terminals.

[0013] The application also provides a detection method of the trailer and the tractor electric connector contact point arrangement according to the device.

[0014] 1) First, input the circuit contact point to be detected in the man-machine interaction unit through the operation button, and after the signal processing module one receives the input signal, send the operation information to the contact on-off unit and the light detection unit through the communication module one;

[0015] 2) After the communication module two receives the information, transmit it to the signal processing module two, and the signal processing module two controls the corresponding circuit on-off of the circuit on-off module according to the information;

[0016] 3) After the communication module three receives the information, transmit it to the signal processing module three, and the signal processing module three receives the visual signal input by the visual sensor at the same time and identifies the trailer light state;

[0017] The signal processing module three comprehensively judges whether the contact point arrangement of the electric connector meets the requirements according to the light state identification result and the operation information input by the communication module three, and transmits the judgment result to the communication module one through the communication module three;

[0018] 4) After the communication module one receives the judgment result information, transmit it to the signal processing module one.

[0019] Preferably, after receiving the input signal from the operation button, the signal processing module 1 displays it on the display screen; and after receiving the judgment result information, the signal processing module 1 also displays it on the display screen.

[0020] This invention can detect whether the contact arrangement of the 7-pin electrical connector between the tractor and the trailer is correct through this detection method. The system is simple and easy to operate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the system structure of the present invention.

[0022] In the picture:

[0023] 100. Human-computer interaction unit; 101. Housing 1; 102. Power module 1; 103. Operation buttons; 104. Display screen; 105. Communication module 1; 106. Signal processing module 1;

[0024] 200. Contact switching unit; 201. Housing II; 202. Power module II; 203. Tractor wiring port; 204. Trailer wiring port; 205. Communication module II; 206. Signal processing module II; 207. Circuit switching module;

[0025] 300. Light detection unit; 301. Housing 3; 302. Power supply module 3; 303. Vision sensor; 304. Communication module 3; 305. Signal processing module 3;

[0026] 501. Tractor electrical connector; 502. Trailer electrical connector. Detailed Implementation

[0027] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 As shown, the present invention provides a detection device for the contact arrangement of an electrical connector between a tractor and a trailer, which mainly consists of three parts: a human-machine interaction unit 100, a contact on / off unit 200, and a light detection unit 300.

[0029] The human-computer interaction unit 100 consists of a housing 101, a power module 102, operation buttons 103, a display screen 104, a communication module 105, and a signal processing module 106.

[0030] Housing 101 is made of plastic. Power module 102, operation button 103, display screen 104, communication module 105, and signal processing module 106 are mounted on housing 101.

[0031] The power module 102 is a battery, which is electrically connected with the operation button 103, the display screen 104, the communication module 105 and the signal processing module 106 and supplies power for them.

[0032] The operation button 103 is a mechanical key board. The display screen 104 is an LCD display screen.

[0033] The signal processing module 106 is a single chip microcomputer, which is electrically connected with the operation button 103, the display screen 104 and the communication module 105. The signal processing module 106 sends instructions to the display screen 104 according to the operation instructions of the operation button 103, so as to display operation information on the display screen 104. The signal processing module 106 communicates with the contact on-off unit 200 and the light detection unit 300 through the communication module 105. The communication module 105 is a 2.4G wireless communication module.

[0034] The contact on-off unit 200 is composed of a shell 201, a power module 202, a tractor wiring port 203, a trailer wiring port 204, a communication module 205, a signal processing module 206 and a circuit on-off module 207.

[0035] The shell 201 is a plastic shell. The power module 202, the tractor wiring port 203, the trailer wiring port 204, the communication module 205, the signal processing module 206 and the circuit on-off module 207 are installed on the shell 201.

[0036] The power module 202 is a battery. The power module 202 is electrically connected with the communication module 205, the signal processing module 206 and the circuit on-off module 207 and supplies power for them.

[0037] The circuit on-off module 207 is a relay with multi-way on-off function. The circuit on-off module 207 can realize independent on-off of at least 7 circuits, which includes at least 7 input terminals and 7 output terminals.

[0038] The tractor wiring port 203 is an electrical connector meeting the requirements of the national standard GB / T 5053.1-2006, which has 7 circuit contacts, and the 7 circuit contacts are connected with the 7 input terminals of the circuit on-off module 207.

[0039] The trailer wiring port 204 is an electrical connector meeting the requirements of the national standard GB / T 5053.1-2006, which has 7 circuit contacts, and the 7 circuit contacts are connected with the 7 output terminals of the circuit on-off module 207.

[0040] The signal processing module two 206 is a single-chip microcomputer. The signal processing module two 206 is electrically connected with the circuit on-off module 207 and the communication module two 205. The signal processing module two 206 can control the on-off of each circuit in the circuit on-off module 207. The signal processing module two 206 realizes communication with the human-computer interaction unit 100 through the communication module two 205. The communication module two 205 is a 2.4G wireless communication module.

[0041] The light detection unit 300 is composed of a shell three 301, a power module three 302, a visual sensor 303, a communication module three 304 and a signal processing module three 305.

[0042] The shell three 301 is a plastic shell. The power module three 302, the visual sensor 303, the communication module three 304 and the signal processing module three 305 are installed on the shell three 301.

[0043] The power module three 302 is a storage battery. The power module three 302 is electrically connected with the visual sensor 303, the communication module three 304 and the signal processing module three 305.

[0044] The visual sensor 303 is a CMOS camera. The visual sensor 303 is electrically connected with the signal processing module three 305. The visual sensor 303 can collect the trailer light signal and transmit the collection result to the signal processing module three 305.

[0045] The signal processing module three 305 is a single-chip microcomputer. The signal processing module three 305 is electrically connected with the communication module three 304. The signal processing module three 305 can judge the type and on-off state of the trailer light according to the signal collected by the visual sensor 303, and then transmit the processing result to the human-computer interaction unit 100 through the communication module three 304. The communication module three 304 is a 2.4G wireless communication module.

[0046] The detection method based on the detection device is as follows:

[0047] Firstly, the tester inputs the contact to be detected in the human-computer interaction unit 100 through the operation button. After the signal processing module one receives the input signal, the operation information is displayed on the display screen, and the operation information is sent to the communication module two of the contact on-off unit 200 through the communication module one. After the communication module two receives the information, the information is transmitted to the signal processing module two. The signal processing module two controls the on-off of the corresponding circuit in the circuit on-off module according to the information.

[0048] The signal processing module one sends the operation information to the communication module three in the light detection unit 300 through the communication module one. After receiving the information, the communication module three transmits the information to the signal processing module three. The signal processing module three receives the visual signal input by the visual sensor and identifies the trailer light state. According to the identification result of the light state and the operation information input by the communication module three, the signal processing module three comprehensively judges whether the contact arrangement of the electrical connector meets the requirements of GB / T 5053.1-2006, and transmits the judgment result to the communication module one through the communication module three. After receiving the information, the communication module one transmits the information to the signal processing module one and displays it on the display screen, thereby realizing the compliance detection of the contact arrangement of the electrical connector of the tractor and the trailer.

[0049] Embodiment

[0050] Taking the detection of the contact number 3 as an example, the working process of the present application is described in detail. According to the requirements of GB / T 5053.1-2006, the contact number 3 is the left turn signal lamp. Before the test starts, first connect the electrical connector 501 of the tractor with the electrical connector 502 of the trailer, and turn on the left turn signal lamp of the tractor, and then observe whether the left turn signal lamp of the trailer is turned on. If the left turn signal lamp of the trailer is turned on, it means that the left turn signal lamp signal of the tractor can be normally output and the left turn signal lamp of the trailer can work normally.

[0051] Then, disconnect the electrical connection device between the tractor and the trailer, connect the electrical connector 501 of the tractor with the tractor wiring port 203 of the contact on-off unit 200 of the present application, and connect the electrical connector 502 of the trailer with the trailer wiring port 204 of the contact on-off unit 200 of the present application.

[0052] The test personnel input the detection instruction of the contact number 3 in the man-machine interaction unit 100 through the operation button 103, and the signal processing module one 106 receives the instruction and displays the operation information on the display screen 104, and sends the operation information to the communication module two 205 of the contact on-off unit 200 through the communication module one 105. After receiving the information, the communication module two 205 transmits the information to the signal processing module two 206, and the signal processing module two 206 controls the 3rd circuit to be connected in the circuit on-off module 207 according to the information.

[0053] The signal processing module 106 sends the operation information to the communication module three 304 in the light detection unit 300 through the communication module 105. After receiving the information, the communication module three 304 transmits it to the signal processing module three 305. The signal processing module three 305 receives the visual signal input by the visual sensor 303, identifies the trailer light state, and determines whether the trailer left turn signal is on. According to the identification result of the light state and the operation information input by the communication module three 304, the signal processing module three 305 comprehensively determines whether the contact arrangement of the electrical connector meets the requirements of GB / T 5053.1-2006. If the identification result is that the trailer left turn signal is on, it is determined that the No. 3 contact of the electrical connector meets the national standard requirements. The signal processing module three 305 transmits the determination result to the communication module one 105 through the communication module three 304. After receiving the information, the communication module one 105 transmits it to the signal processing unit one 106 and displays it through the display screen 104. The test personnel can realize the compliance detection of the No. 3 contact arrangement of the electrical connector of the towing vehicle and the trailer according to the display result of the display screen 104. The detection of other contacts is also operated in the same way.

Claims

1. A detection device for the contact arrangement of electrical connectors between a tractor and a trailer, characterized in that: It includes a human-computer interaction unit, a contact on / off unit, and a light detection unit; The human-machine interaction unit consists of a housing, a power module, operation buttons, a display screen, a communication module, and a signal processing module. The signal processing module is electrically connected to the operation buttons, the display screen, and the communication module. The signal processing module displays the operation instructions from the operation buttons on the display screen. The signal processing module communicates with the contact switching unit and the light detection unit through the communication module. The contact switching unit consists of a housing, a power module, a tractor wiring port, a trailer wiring port, a communication module, a signal processing module, and a circuit switching module. The circuit switching module is a relay capable of independently switching on and off at least 7 circuits. The tractor wiring port has 7 circuit contacts, which are connected to the 7 input terminals of the circuit switching module. The trailer wiring port has 7 circuit contacts, which are connected to the 7 output terminals of the circuit switching module. The signal processing module is electrically connected to both the circuit switching module and the communication module. The signal processing module controls the switching on and off of each circuit in the circuit switching module and communicates with the human-machine interface unit through the communication module. The lighting detection unit consists of a housing, a power module, a vision sensor, a communication module, and a signal processing module. The vision sensor is electrically connected to the signal processing module, which collects the trailer lighting signals and transmits the results to the signal processing module. The signal processing module is electrically connected to the communication module, which determines the type and on / off status of the trailer lights based on the signals collected by the vision sensor, and then transmits the processing results to the human-machine interface unit through the communication module. The signal processing module one, signal processing module two, and signal processing module three are microcontrollers; The communication modules 1, 2, and 3 are 2.4G wireless communication modules; The operation buttons are mechanical keypads, the display screen is an LCD display screen, and the vision sensor is a CMOS camera; The circuit switching module includes at least 7 input terminals and 7 output terminals.

2. The method for detecting the contact arrangement of the tractor and trailer electrical connectors according to claim 1, characterized in that: 1) First, input the circuit contacts to be detected in the human-computer interaction unit through the operation button. After the signal processing module receives the input signal, it sends the operation information to the contact connection unit and the light detection unit through the communication module. 2) After receiving the information, the second communication module transmits it to the second signal processing module, and the second signal processing module controls the corresponding circuit in the circuit on / off module to be on or off according to the information. 3) After receiving the information, the communication module three transmits it to the signal processing module three. The signal processing module three simultaneously receives the visual signal input from the visual sensor and identifies the status of the trailer lights. Based on the light status recognition results and the operation information input by the communication module 3, the signal processing module 3 comprehensively judges whether the contact arrangement of the electrical connector meets the requirements, and transmits the judgment result to the communication module 1 through the communication module 3; 4) After receiving the judgment result information, the communication module one transmits it to the signal processing module one; Upon receiving an input signal from the operation button, the signal processing module simultaneously displays it on the screen; and, Once the signal processing module receives the judgment result information, it simultaneously displays it on the display screen.

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