Vehicle detection system and vehicle detection equipment

Abstract

The utility model discloses a vehicle detection system and a vehicle detection device, the vehicle comprises a tractor and a trailer, the vehicle detection system comprises a vehicle lamp power supply detection signal acquisition device, the vehicle lamp power supply detection signal acquisition device is connected with a lighting power supply interface of the tractor and is used for acquiring a vehicle lamp power supply detection signal in a tractor power supply state; the trigger diagnosis device is connected with the tractor and the vehicle lamp power supply detection signal acquisition device and is used for determining the power supply state of the vehicle lamp according to the vehicle lamp power supply detection signal and sending a power supply trigger signal to the tractor; the alarm device is connected with the trigger diagnosis device and used for giving an alarm when it is determined that the power supply state of the vehicle lamp is abnormal. When the vehicle detection system detects the power supply function of the trailer, automatic detection can be achieved, manpower and time can be saved, the safety and reliability of the trailer can be improved, the quality of the vehicle is improved, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle detection system and vehicle detection equipment. Background Art

[0002] The trailer of trailer trucks, RVs, and other special vehicles that use towing methods needs to be connected to the towing vehicle, but these vehicles are generally long, which brings trouble to the trailer lighting test. These vehicles are generally not tested for power supply to their trailers when they leave the factory, or only test whether the towing vehicle can power the trailer lights, but this usually requires manual recording of test results.

[0003] If the power supply of the trailer is not tested before leaving the factory, it may easily lead to safety accidents. In the case of manual measurement, manual operation is required during the inspection. Conventional manual measurement takes at least 3 minutes and requires 2 people to complete it, which is manpower and time-consuming. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a vehicle detection system, by setting up the vehicle detection system, the power supply function of the trailer can be automatically detected, which can not only save manpower and time, but also improve the safety and reliability of the trailer, improve the quality of the vehicle, and avoid safety accidents.

[0005] A second purpose of the utility model is to provide a vehicle detection device.

[0006] In order to solve the above problems, the first aspect of the utility model provides a vehicle detection system, wherein the vehicle includes a tractor and a trailer, and the vehicle detection system includes: a headlight power supply detection signal acquisition device, which is connected to the light power supply interface of the tractor and is used to acquire a headlight power supply detection signal; a trigger diagnosis device, which is connected to the tractor and the headlight power supply detection signal acquisition device and is used to send a power supply trigger signal to the tractor, and determine the headlight power supply status of the trailer according to the headlight power supply detection signal; an alarm device, which is connected to the trigger diagnosis device and is used to alarm when it is determined that the headlight power supply status is abnormal.

[0007] According to the vehicle detection system of the utility model, the trigger diagnosis device, the headlight power supply detection signal acquisition device and the alarm device can be multiple devices or equipment, and each device is connected by a hard wire or a network cable to jointly realize the detection function. Alternatively, the multiple devices can also be integrated into the same hardware structure, and the vehicle detection system replaces the trailer and is connected to the tractor. The power supply function of the trailer can be detected in a limited space, the safety and reliability of the trailer can be improved, the quality of the vehicle can be improved, and safety accidents can be avoided. The vehicle detection system can automatically perform the detection operation without manual intervention, which can save manpower and time.

[0008] In some embodiments, the lighting power supply interface of the tractor includes at least one of a left rear position light power supply interface, a left turn light power supply interface, a parking light power supply interface, a right turn light power supply interface, a fog light power supply interface, and a reversing light power supply interface.

[0009] In some embodiments, the vehicle light power supply detection signal acquisition device includes: a detection connector, a first end of the detection connector is connected to the left rear position light power supply interface, the left turn light power supply interface, the parking light power supply interface, the right turn light power supply interface, the fog light power supply interface and the reversing light power supply interface; a left rear position light detection circuit, a first end of the left rear position light detection circuit is connected to the second end of the detection connector; a left turn light detection circuit, a first end of the left turn light detection circuit is connected to the second end of the detection connector; a parking light detection circuit, a first end of the parking light detection circuit is connected to the second end of the detection connector; a right turn light detection circuit, a first end of the right turn light detection circuit is connected to the second end of the detection connector; a fog light detection circuit, a first end of the fog light detection circuit is connected to the second end of the detection connector; a reversing light detection circuit, a first end of the reversing light detection circuit is connected to the second end of the detection connector.

[0010] In some embodiments, the trigger diagnostic device includes: a diagnostic unit, a first end of the diagnostic unit is connected to the second end of the left rear position light detection circuit, the second end of the left turn light detection circuit, the second end of the parking light detection circuit, the second end of the right turn light detection circuit, the second end of the fog light detection circuit and the second end of the reversing light detection circuit.

[0011] In some embodiments, the trigger diagnostic device further includes: a trigger unit, a first end of which is connected to the tractor, for sending an initial power supply trigger signal to the tractor to control the tractor to supply power to the left rear position light of the trailer.

[0012] In some embodiments, the second end of the trigger unit is connected to the second end of the diagnostic unit, and the trigger unit is further used to, after determining that the power supply status of the left rear position light is normal, send a re-power supply trigger signal to the tractor in a preset order, so as to control the tractor to respectively power the left turn light, parking light, right turn light, fog light, and reverse light of the trailer.

[0013] In some embodiments, the vehicle detection system also includes: a docking joint, the docking joint includes a first joint and a second joint, a wire is connected between the first joint and the second joint, the first joint is suitable for being connected to the left rear position light power supply interface, the left turn light power supply interface, the parking light power supply interface, the right turn light power supply interface, the fog light power supply interface and the reversing light power supply interface, and the second joint is suitable for being connected to the vehicle light power supply detection signal acquisition device.

[0014] In some embodiments, the vehicle detection system also includes: an external test light, the external test light includes a third connector and a left rear position light test light, a left turn signal light test light, a parking light test light, a right turn signal light test light, a fog light test light, and a reverse light test light connected to the third connector, and the third connector is suitable for connecting to the tractor.

[0015] In some embodiments, the vehicle detection system also includes: a diagnostic result generating device, which is wirelessly connected to the diagnostic unit and is used to generate a diagnostic result based on the power supply status of the trailer's headlights; and a printing device, which is connected to the diagnostic result generating device and is used to receive and print the diagnostic result.

[0016] The second aspect of the utility model provides a vehicle detection device, comprising: a vehicle detection system as described in any one of the above embodiments; at least one processor, the processor and the vehicle detection system are electrically connected to the processor; a memory, the memory is communicatively connected to the at least one processor, and the memory stores a computer program that can be executed by the at least one processor.

[0017] According to the vehicle detection device provided by the embodiment of the utility model, the hardware structure of the vehicle detection system of the above embodiment can be directly put into use as a vehicle detection device, or the above vehicle detection system can be added to a vehicle detection device, so that the device has the function of detecting the power supply status of the trailer's headlights. Among them, when the vehicle detection device automatically performs the trailer's headlight power supply status detection operation, the processor executes the computer program stored in the memory to assist the vehicle detection system in realizing the automatic detection of the trailer's headlight power supply status, without the need for manual intervention, which can save manpower and time, and can improve the safety and reliability of the trailer through detection, improve the quality of the vehicle, and avoid safety accidents.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a block diagram of a vehicle detection system according to an embodiment of the utility model;

[0021] Figure 2 is a block diagram of a device for acquiring a vehicle light power supply detection signal according to an embodiment of the utility model;

[0022] Figure 3 is a cross-sectional view of a detection joint according to an embodiment of the utility model;

[0023] Figure 4 is a schematic diagram of a butt joint according to an embodiment of the utility model;

[0024] Figure 5 is a schematic diagram of a first joint according to an embodiment of the utility model;

[0025] Figure 6 is a block diagram of a trigger diagnosis device according to an embodiment of the utility model;

[0026] Figure 7 is a front view of an external test lamp according to an embodiment of the utility model;

[0027] Figure 8 is a side view of an external test lamp according to an embodiment of the utility model;

[0028] Fig. 9 is a block diagram of a vehicle detection system according to an embodiment of the utility model;

[0029] Fig.10 is a block diagram of a vehicle detection system according to yet another embodiment of the utility model;

[0030] Fig.11 It is a block diagram of a vehicle detection device according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] Vehicle testing equipment 1000;

[0033] Vehicle detection system 100, processor 200, memory 300;

[0034] A vehicle lamp power supply detection signal acquisition device 10, a trigger diagnosis device 20, an alarm device 30, a diagnosis result generation device 40, and a printing device 50;

[0035] Detection connector 101, left rear position light detection circuit 11, left turn light detection circuit 12, parking light detection circuit 13, right turn light detection circuit 14, fog light detection circuit 15, reverse light detection circuit 16, diagnosis unit 1, trigger unit 2;

[0036] Butt joint P, external test light Q;

[0037] The first connector m1, the second connector m2, the wire n, the third connector m3, the light sign k, the left rear position light test light A, the left turn signal light test light B, the parking light test light C, the right turn signal light test light D, the fog light test light E, and the reversing light test light F. DETAILED DESCRIPTION

[0038] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0039] Reference below Figure 1 Describe the vehicle detection system according to the embodiment of the utility model, Figure 1 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, wherein Figure 1 As shown, the vehicle detection system 100 includes a vehicle light power supply detection signal acquisition device 10 , a trigger diagnosis device 20 and an alarm device 30 .

[0040] Among them, the structure of vehicles such as trucks, RVs or semi-trailers is usually divided into two parts, a tractor and a trailer. The lights of the trailer are usually powered and controlled by the tractor. However, when detecting the power supply status of the trailer lights, the trailer is long and has a large body, which is not convenient for detection. Therefore, a vehicle detection system 100 can be used to connect the trailer to the tractor to achieve detection, wherein the headlight power supply detection signal acquisition device 10 is connected to the power supply interface of the tractor, and is used to obtain the headlight power supply detection signal when the tractor supplies power to the trailer; the trigger diagnosis device 20 is connected to the tractor and the headlight power supply detection signal acquisition device 10, and is used to send a trigger signal to the tractor, and is used to determine the headlight power supply status of the trailer according to the headlight power supply detection signal.

[0041] Specifically, the detection of the trailer's power supply function can be the detection of the power supply status of the trailer's lights. Therefore, when performing the power supply detection of the trailer's lights, the trigger diagnosis device 20 of the vehicle detection system of the present application will send a trigger signal to the tractor, so that the tractor enters the power supply state and supplies power to the trailer's lights. The light power supply detection signal acquisition device 10 is actually a device that replaces the trailer to connect to the tractor. When the tractor supplies power to the trailer's lights, the light power supply detection signal acquisition device 10 can directly obtain the light power supply detection signal and send the light power supply detection signal to the trigger diagnosis device 20. The trigger diagnosis device 20 detects the light power supply detection signal and determines the power supply status of the trailer's lights, thereby completing the detection of the trailer's power supply function. It should be noted that the above process is performed automatically and can be automatically completed by the system without manual intervention.

[0042] It is understandable that in actual design, the vehicle light power supply detection signal acquisition device 10 can adopt an existing trailer detection device or trailer detection equipment, and the trigger diagnosis device 20 can be implemented by a diagnostic instrument PORTY instead, which is not limited here. The diagnostic line and the trailer test line can be set separately, or different wire harnesses can be used. If they are the same wire harness, the purpose is to achieve two-way transmission of signals.

[0043] In some embodiments, the vehicle detection system 100 further includes an alarm device 30, which is connected to the trigger diagnosis device 20 and is used to alarm when it is determined that the power supply state of the headlight is abnormal. The alarm device 30 can be configured to include a display, which can display the abnormal power supply state on the screen, and display the error corresponding to the headlight in the abnormal power supply state on the screen, and can prompt the detection personnel to perform maintenance in the form of text or light.

[0044] According to the vehicle detection system 100 of the utility model, the trigger diagnosis device 20, the headlight power supply detection signal acquisition device 10 and the alarm device 30 can be multiple devices or equipment, each device is connected by a hard wire or a network cable to jointly realize the detection function, or, the multiple devices can also be integrated into the same hardware structure, and the vehicle detection system 100 replaces the trailer and is connected to the tractor, which can realize the detection of the trailer's power supply function in a limited space, improve the safety and reliability of the trailer, improve the quality of the vehicle, and avoid safety accidents. The vehicle detection system 100 can automatically perform the detection operation without human intervention, which can save manpower and time.

[0045] In some embodiments, the lighting power supply interface of the tractor includes at least one of a left rear position light power supply interface, a left turn light power supply interface, a parking light power supply interface, a right turn light power supply interface, a fog light power supply interface, and a reverse light power supply interface. It is understandable that the lighting power supply interface of the tractor also includes a grounding wire interface, and the left rear position light power supply interface of the tractor, the left turn light power supply interface, the parking light power supply interface, the right turn light power supply interface, the fog light power supply interface, the reverse light power supply interface, and the grounding wire interface are integrated into a power supply harness interface, and the tractor is connected to each light in the trailer through each lighting power supply interface thereof, so as to supply power to each corresponding light of the trailer.

[0046] In some embodiments, Figure 2 FIG. 1 is a block diagram of a device for acquiring a vehicle light power supply detection signal according to an embodiment of the utility model, wherein: Figure 2 The alarm device 30 is not shown. Figure 2 As shown, the vehicle light power supply detection signal acquisition device 10 includes a detection connector 101, a left rear position light detection circuit 11, a left turn light detection circuit 12, a parking light detection circuit 13, a right turn light detection circuit 14, a fog light detection circuit 15 and a reversing light detection circuit 16.

[0047] The first end of the detection connector 101 is connected to the left rear position light power supply interface, the left turn light power supply interface, the parking light power supply interface, the right turn light power supply interface, the fog light power supply interface and the reverse light power supply interface of the tractor. The left rear position light detection circuit 11 is connected to the second end of the detection connector 101, and is used to obtain the left rear position light power supply detection signal of the trailer; the left turn light detection circuit 12 is connected to the second end of the detection connector 101, and is used to obtain the left turn light power supply detection signal of the trailer; the parking light detection circuit 13 is connected to the second end of the detection connector 101, and is used to obtain the parking light power supply detection signal of the trailer; the right turn light detection circuit 14 is connected to the second end of the detection connector 101, and is used to obtain the right turn light power supply detection signal of the trailer; the fog light detection circuit 15 is connected to the second end of the detection connector 101, and is used to obtain the fog light power supply detection signal of the trailer; the reverse light detection circuit 16 is connected to the second end of the detection connector 101, and is used to obtain the reverse light power supply detection signal of the trailer.

[0048] Specifically, the detection connector 101, the left rear position light detection circuit 11, the left turn light detection circuit 12, the parking light detection circuit 13, the right turn light detection circuit 14, the fog light detection circuit 15 and the reverse light detection circuit 16 can be combined into a whole detection harness, and each of the above detection circuits can be a wire in the power supply harness. In addition, a ground wire is also provided in the power supply harness. In the detection state, the pin on the first end of the detection connector 101 is adapted to the light power supply interface of the tractor.

[0049] Furthermore, it can be combined with Figure 3 Table 1 shows the light detection circuit of the present invention. Figure 3 is a cross-sectional view of a detection connector according to an embodiment of the present utility model; Table 1 is a pin definition table of a light detection circuit according to an embodiment of the present utility model.

[0050] Table 1

[0051]

[0052] Combination Figure 3 As can be seen from Table 1, wires 11 to 16 represent the left rear position light detection circuit 11, the left turn light detection circuit 12, the parking light detection circuit 13, the right turn light detection circuit 14, the fog light detection circuit 15, and the reverse light detection circuit 16. It should be noted that wire 17 is the ground wire. When the tractor is powered on, the vehicle light power supply detection signal acquisition device 10 does not acquire the power supply detection signal through wire 17. Therefore, Figure 3 The pins in are respectively the pins of the left rear position light detection circuit 11, the left turn light detection circuit 12, the parking light detection circuit 13, the right turn light detection circuit 14, the fog light detection circuit 15, the reversing light detection circuit 16 and the ground wire 17.

[0053] However, in actual testing, if the vehicle light power supply detection signal acquisition device 10 used in the embodiment of the utility model is an existing trailer detection device or trailer detection equipment, etc., then the detection circuit interface of the vehicle light power supply detection signal acquisition device 10 may not match the power supply interface of the tractor. For example, for imported equipment such as AHP, its detection pin definition is different from the domestic standard, and the internal wiring needs to be changed when used. For example, in Germany, the reversing light signal is on the pin (L58.pin3), while in the power supply interface of domestic tractors, the pin corresponding to the reversing light power supply interface is NC Pin7. The two are not compatible, which will increase the difficulty of detection. Therefore, the vehicle light power supply detection signal acquisition device 10 can be domestically modified.

[0054] In some embodiments of the present invention, a butt joint P can be designed for use with imported equipment. Figure 4 As shown, it is a schematic diagram of a docking joint according to an embodiment of the utility model, wherein the docking joint P includes a first joint m1 and a second joint m2, wherein the first joint m1 is suitable for connecting with a left rear position light power supply interface, a left turn light power supply interface, a parking light power supply interface, a right turn light power supply interface, a fog light power supply interface and a reversing light power supply interface of the tractor, and the second joint m2 is suitable for connecting with a vehicle light power supply detection signal acquisition device 10.

[0055] A wire n is connected between the first connector m1 and the second connector m2, and the length of the entire butt connector P is about 50 cm. The wire n can connect the power supply interface of the tractor and the corresponding pins in the headlight power supply detection signal acquisition device 10, thereby connecting each detection circuit in the headlight power supply detection signal acquisition device 10 to the corresponding power supply interface of the tractor through internal correspondence, and can be installed once during detection, that is, all pins can be detected. The butt connector P is used to realize the improvement of connecting the reversing light power supply detection pin to the blank pin of the trailer power supply, which can reduce the disassembly and assembly of the wiring harness and save 30 seconds of operation time.

[0056] Furthermore, since the power supply interface of the tractor is also a female connector, if the headlight power supply detection signal acquisition device 10 used is an imported device, its detection circuit interface is also mostly a female connector. During detection, it is necessary to disconnect the trailer line from the vehicle and use backward force to disassemble and assemble the wiring harness. Due to inertia, the operator has safety hazards and wastes time. Therefore, it can be designed that the first connector m1 and the second connector m2 in the above-mentioned docking connector P are both male connectors, one male connector is used to connect to the power supply interface of the tractor, and the other male connector is used to connect to the detection circuit interface of the headlight power supply detection signal acquisition device 10. The specifications of the two male connectors are the same, and the size of the male connector can be set according to actual conditions, and no specific restrictions are made here. Taking the first connector m1 as an example, it can be combined with Figure 4 and Figure 5 Understand the first joint m1 and the second joint m2 of the embodiment of the utility model. Figure 5 is a schematic diagram of a first joint according to an embodiment of the utility model, such as Figure 4 As shown, the height of the first connector m1 and the second connector m2 can be set to be about 8 cm, the length of the first connector m1 is about 10 cm, the width of the first connector m1 is about 8 cm, and the second connector m2 is provided with pins corresponding to each detection circuit in the vehicle light power supply detection signal acquisition device 10, that is, Figure 5 The pins in the second connector m2 are shown with Figure 3 The various pins of the vehicle light power supply detection signal acquisition device 10 shown in are adapted.

[0057] Based on the above, by designing the docking connector P, the headlight power supply detection signal acquisition device 10 can be directly connected to the power supply interface of the tractor through the docking connector P. During the detection, the operation process is simple and labor-saving, and at least 30 seconds can be saved for each vehicle, while reducing safety risks.

[0058] In addition, during the detection process, if the butt connector P is used, the corresponding software in the equipment needs to be adjusted, such as changing the settings in the internal program se 137.10.810. After the change, the power supply status of the trailer lights can be accurately detected, and at least 1 minute can be saved for each vehicle during the detection. Based on an annual output of 10,000 vehicles, 10,000 minutes can be saved, meeting the online production time requirements.

[0059] In some embodiments, Figure 6 is a block diagram of a trigger diagnosis device according to an embodiment of the present utility model, referring to Figure 6 As shown, the trigger diagnostic device 20 includes a diagnostic unit 1 .

[0060] In some embodiments, the trigger diagnostic device 20 includes a diagnostic unit 1, a first end of which is connected to a second end of a left rear position light detection circuit 11, a second end of a left turn light detection circuit 12, a second end of a parking light detection circuit 13, a second end of a right turn light detection circuit 14, a second end of a fog light detection circuit 15, and a second end of a reverse light detection circuit 16. That is, the tractor is connected to the trigger diagnostic device 20 via a power supply harness composed of a detection connector 101 and various detection circuits, and the trigger diagnostic device 20 can obtain a light power supply detection signal through these harnesses and then determine the light power supply status of the corresponding trailer.

[0061] Combination Figure 3 As shown in Table 1, when the tractor supplies power to the corresponding trailer's headlights, the diagnostic unit 1 obtains the left rear position light power supply detection signal through wire No. 11; obtains the left turn light power supply detection signal through wire No. 12; obtains the parking light power supply detection signal through wire No. 13; obtains the right turn light power supply detection signal through wire No. 14; obtains the fog light power supply detection signal through wire No. 15; and obtains the reverse light power supply detection signal through wire No. 16. Exemplarily, the headlight power supply detection signal acquisition device 10 obtains the signal in wire No. 11 in the power supply harness, that is, the left rear position light power supply detection signal, and sends it to the diagnostic unit 1, which determines the power supply voltage of the left rear position light according to the left rear position light power supply detection signal, and determines the power supply state of the left rear position light of the corresponding trailer according to the power supply voltage.

[0062] When the diagnostic unit 1 is connected to the headlight power supply detection signal acquisition device 10, it can be used to determine the headlight power supply voltage of the trailer according to the headlight power supply detection signal, and determine the headlight power supply status of the trailer according to the headlight power supply voltage of the trailer.

[0063] Specifically, after the headlight power supply detection signal acquisition device 10 acquires the headlight power supply detection signal, it directly sends it to the diagnostic unit 1. The diagnostic unit 1 can determine the power supply voltage of the headlight of the corresponding trailer according to the received headlight power supply detection signal, and judge the power supply status of the headlight of the trailer according to the power supply voltage of the headlight of the trailer.

[0064] In some embodiments, when judging the power supply status of the trailer's lights based on the trailer's light power supply voltage, the diagnostic unit 1 is used to compare the trailer's light power supply voltage with a preset voltage threshold, and if it is determined that the trailer's light power supply voltage meets the preset voltage threshold, then it is determined that the light power supply status is normal.

[0065] Specifically, the diagnostic unit 1 may include a voltage comparator, and the voltage comparator may be provided with a preset voltage threshold, which is the voltage threshold when each headlight of the trailer is working normally. After obtaining the power supply voltage of the corresponding headlight, the power supply voltage of the headlight of the trailer is compared with the preset voltage threshold through the voltage comparator. If it is determined that the power supply voltage of the headlight of the trailer meets the preset voltage threshold, it is determined that the power supply status of the headlight is normal. If it is within the preset voltage threshold, it means that the power supply status of the headlight is normal. If it is not satisfied, it means that there is a fault and needs to be repaired.

[0066] For example, each headlight of the trailer may be set to correspond to a voltage threshold. For example, the preset voltage thresholds may include a first voltage threshold, a second voltage threshold, a third voltage threshold, a fourth voltage threshold, a fifth voltage threshold and a sixth voltage threshold, which respectively correspond to the power supply voltage of the left rear position light of the trailer, the power supply voltage of the left turn light of the trailer, the power supply voltage of the parking light of the trailer, the power supply voltage of the right turn light of the trailer, the power supply voltage of the fog light of the trailer and the power supply voltage of the reversing light of the trailer. The values ​​of the above voltage thresholds may be set according to the design of the vehicle and the voltage of the trailer headlight during normal operation, and are not specifically limited here. For example, the above six voltage thresholds may be set to be the same or different. As shown in Table 1 below, the utility model is described by taking the first voltage threshold, the second voltage threshold, the third voltage threshold, the fourth voltage threshold, the fifth voltage threshold and the sixth voltage threshold as 22-28V as an example.

[0067] Exemplarily, the diagnostic unit 1 can obtain the power supply voltage of the left rear position light of the trailer according to the power supply detection signal of the left rear position light of the trailer, and compare the power supply voltage of the left rear position light of the trailer with the first voltage threshold of the left rear position light. If the first voltage threshold is met, it means that the power supply state of the left rear position light of the trailer is normal. And, after detecting that the power supply state of the left rear position light of the trailer is normal, it is determined according to the left turn signal voltage detection signal that the power supply voltage of the left turn signal meets the second voltage threshold, which means that the power supply state of the left turn signal of the trailer is normal, and so on until all the lights of the trailer are detected. Among them, if the power supply state of the lights of all trailers is normal, it can be finally determined that the power supply function of the trailer is normal.

[0068] In some embodiments, reference Figure 6 As shown, the trigger diagnosis device 20 also includes a trigger unit 2. The first end of the trigger unit 2 is connected to the tractor, and is used to send an initial power supply trigger signal to the tractor to control the tractor to supply power to the left rear position light of the trailer. Specifically, when the power supply function of the trailer is detected, the power supply status of the left rear position light of the trailer will be determined first. Therefore, an initial power supply trigger signal is provided to control the tractor to supply power to the left rear position light of the trailer.

[0069] In other embodiments, reference Figure 6 As shown, the second end of the trigger unit 2 is connected to the second end of the diagnostic unit 1. The trigger unit 2 is used to send a re-powering trigger signal after determining that the power supply state of the left rear position light is normal. Specifically, after the diagnostic unit 1 determines that the power supply state of the trailer's lights is normal, the trigger unit 2 will send a re-powering trigger signal to the tractor in a preset order, control the tractor to enter the power supply state, and control the tractor to supply power to the left turn signal, parking light, right turn signal, fog light, and reverse light of the trailer respectively, so that the power supply detection of the trailer's lights will not be missed and no manual operation is required.

[0070] Specifically, the light detection circuits and the trigger unit 2 sending the power supply trigger signal of each embodiment of the present invention can be understood in conjunction with Table 1. More specifically, when the vehicle detection system of the embodiment of the present invention detects the power supply status of the trailer lights, the existing trailer detection device or trailer detection equipment can be used for detection.

[0071] In some embodiments, when the trigger unit 2 sends a power supply trigger signal to the tractor to control the tractor to supply power to the trailer's headlights, the program starts after the detection starts. The trigger unit 2 can first automatically send an initial power supply trigger signal to the tractor. The initial power supply trigger signal is the program number 1201 shown in Table 1. The program number can be used as the first power supply trigger signal to the tractor to control the tractor to supply power to the left rear position light of the trailer. Then the headlight power supply detection signal acquisition device 10 acquires the left rear position light voltage detection signal of the trailer. When the diagnostic unit 1 determines that the power supply status of the left rear position light of the trailer is normal according to the left rear position light voltage detection signal of the trailer, the trigger unit 2 automatically executes the step of sending a power supply trigger signal again.

[0072] In other embodiments, after the diagnostic unit 1 sends an initial power supply trigger signal and determines that the power supply status of the left rear position light of the trailer is normal, the trigger unit 2 will send a re-power supply trigger signal in the order of the re-power supply trigger signal, and sequentially control the tractor to power the trailer's left turn signal, the trailer's parking light, the trailer's right turn signal, the trailer's fog light, and the trailer's reverse light, and perform detection through the diagnostic unit 1.

[0073] The trigger unit 2 is used to send a re-powering trigger signal after determining that the power supply state of the vehicle lights is normal. The trigger unit 2 is specifically used to send a first re-powering trigger signal to the tractor after determining that the power supply state of the vehicle lights is normal. For example, as shown in Table 1, the program number 134 can be sent to the tractor to control the tractor to power the left turn signal of the trailer; after determining that the power supply state of the vehicle lights is normal, send a second re-powering trigger signal, for example, the program number 133 can be sent to the tractor to control the tractor to power the parking light of the trailer; after determining that the power supply state of the vehicle lights is normal, send a third re-powering trigger signal, for example, the program number 135 can be sent to the tractor to control the tractor to power the right turn signal of the trailer; after determining that the power supply state of the vehicle lights is normal, send a fourth re-powering trigger signal, for example, the program number 136 can be sent to the tractor to control the tractor to power the fog light of the trailer; after determining that the power supply state of the vehicle lights is normal, send a fifth re-powering trigger signal, for example, the program number 137 can be sent to the tractor to control the tractor to power the reverse light of the trailer. When the trailer's fog back-up light power supply state is determined to be normal according to the trailer's back-up light voltage detection signal, the detection is completed, and it is determined that the trailer's light power supply is normal. The above execution procedure takes a total of 10 seconds, while conventional manual measurement takes at least 3 minutes and requires 2 people to complete. The program automatically sends a power supply trigger signal to control the tractor's power supply, saving manpower and time compared to the existing technology.

[0074] It is understandable that in actual production, inspectors may adopt different inspection sequences as needed, which are not limited to the above example and are not specifically limited here.

[0075] In some embodiments, when judging the power supply status of the trailer's headlights according to the power supply voltage of the trailer's headlights, the diagnostic unit 1 is also used to compare the power supply voltage of the trailer's headlights with a preset voltage threshold, and determine that the power supply voltage of the trailer's headlights does not meet the preset voltage threshold, then determine that the power supply status of the headlights is abnormal, and the alarm device reports an error. For example, when a fault occurs due to poor connection or dirtiness of the trailer's power supply harness, if the power supply voltage of the trailer's right turn signal lamp is 13.05V, which is not within the third voltage threshold range of 22-28V, then it is considered that the power supply status of the headlights is abnormal, and the alarm device reports an error. At this time, the detection personnel can directly receive the error information of the vehicle detection system, directly manually stop the detection program being executed by the vehicle detection system, and interrupt the detection.

[0076] Furthermore, in order to eliminate the possibility of false alarms from the detection equipment during the detection process, a set of external test lights can be designed. When the trailer power supply test program reports an error, the external test lights can be used to further clarify the test results. Figure 7 and Figure 8 To understand the external test light of the embodiment of the utility model, Figure 7 is a front view of an external test lamp according to an embodiment of the utility model; Figure 8 FIG. 1 is a side view of an external test lamp according to an embodiment of the utility model. Figure 7 As shown, the external test light Q includes a third connector m3 and a left rear position light test light A, a left turn light test light B, a parking light test light C, a right turn light test light D, a fog light test light E, and a reverse light test light F connected to the third connector m3. Among them, the third connector m3 is suitable for connecting to the power supply interface of the tractor. It can be understood that the third connector m3 is also a male connector, and the specifications of the third connector m3 can be set to be the same as those of the first connector m1 and the second connector m2. For reference, Figure 5 The third joint m3 of the embodiment of the utility model is understood and will not be described in detail here. The left rear position lamp test lamp A, the left turn lamp test lamp B, the parking lamp test lamp C, the right turn lamp test lamp D, the fog lamp test lamp E, and the reverse lamp test lamp F respectively represent the left rear position lamp, the left turn lamp, the parking lamp, the right turn lamp, the fog lamp, and the reverse lamp of the trailer.

[0077] And, if Figure 7 and Figure 8 As shown, in order to facilitate observation and distinction, the left rear position light test light A, the left turn signal test light B, the parking light test light C, the right turn signal test light D, the fog light test light E, and the reversing light test light F can be set on a light board k. The length of the light board k can be set to be about 20 cm, the width to be about 10 cm, and the thickness to be about 1 cm. The light board k is provided with a base for installing each test light, and the height of each base can be set to be about 0.5 cm.

[0078] For example, when judging the power supply status of the trailer's lights according to the power supply voltage of the trailer's lights, the inspection personnel received the error message of the vehicle inspection system. When it is determined that the power supply status of the trailer's right turn signal light is abnormal, the connection between the vehicle inspection system 100 and the tractor can be disconnected, and the external test light Q can be connected to the tractor, and the tractor can be controlled to supply power to the external test light Q, and then the power supply status of the left rear position light test light A, the left turn signal light test light B, the parking light test light C, the right turn signal light test light D, the fog light test light E, and the reverse light test light F can be judged. If the right turn signal light D among the above test lights is not lit, it means that the power supply of the right turn signal light of the inspected trailer is indeed faulty. If the right turn signal light D is lit, it means that the power supply status of the right turn signal light of the inspected trailer is normal, and the inspection equipment reports an error, thereby further clarifying the inspection result. It can be understood that if the power supply status of other lights of the inspected trailer is abnormal, this method can be used for further identification.

[0079] In some embodiments, Fig. 9 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, wherein reference is made to Fig. 9 As shown, the vehicle detection system 100 further includes a diagnosis result generating device 40 and a printing device 50 .

[0080] The diagnostic result generating device 40 is wirelessly connected to the diagnostic unit 1 to obtain the power supply status of the trailer's headlights and generate diagnostic results according to the power supply status of the trailer's headlights; the printing device 50 is connected to the diagnostic result generating device 40 to receive and print the diagnostic results. The diagnostic result generating device 40 can use factory IT (Information Technology), which can sort out the final test results, and the printing device 50 can use a printer or printing equipment.

[0081] Specifically, Fig.10 FIG. 1 is a block diagram of a vehicle detection system according to another embodiment of the present utility model, wherein the alarm device 30 is not shown in the figure. Fig.10 In the description, the headlight power supply detection signal acquisition device 10 adopts the existing trailer detection device or trailer detection equipment, the trigger diagnosis device 2 can be a diagnostic instrument PORTY, the diagnosis result generation device 40 is a factory IT, and the printing device 50 is a printer. The diagnosis unit 1 can be connected to the factory IT via WiFi (wireless fidelity, wireless network communication technology), the factory IT can sort out the final detection results, the factory IT and the printer are connected via a network cable, and the detection results can be sent to the printer, and the printer prints them out. In addition, when the diagnosis unit 1 determines that the power supply fault occurs, an error is reported and the error information is sent to the factory IT via WiFi. The factory IT can also record the error report.

[0082] According to the vehicle detection system 100 of the embodiment of the utility model, by adopting the above-mentioned hardware combination, the power supply function of the trailer can be detected, thereby ensuring the safety and reliability of the trailer, and the vehicle detection system 100 can automatically perform the detection of the power supply function of the trailer, which can be operated by a single person, saving manpower and time.

[0083] The second aspect of the utility model provides a vehicle detection device, such as Fig.11 , which is a block diagram of a vehicle detection device according to another embodiment of the present utility model, wherein the vehicle detection device 1000 includes a vehicle detection system 100 , a processor 200 and a memory 300 .

[0084] Among them, there is at least one processor 200, and the processor 200 and the vehicle detection system 100 are electrically connected to the processor 200; the memory 300 is communicatively connected to the at least one processor 200, and the memory 300 stores a computer program that can be executed by the at least one processor.

[0085] According to the vehicle detection device 1000 provided in the embodiment of the utility model, the hardware structure of the vehicle detection system 100 of the above embodiment can be directly put into use as the vehicle detection device 1000, or the above vehicle detection system 100 can be added to a vehicle detection device 1000, so that the device has the function of detecting the power supply status of the trailer's headlights. Among them, when the vehicle detection device 1000 automatically performs the operation of detecting the power supply status of the trailer's headlights, the processor 200 executes the computer program stored in the memory 300 to assist the vehicle detection system 100 in realizing the automatic detection of the power supply status of the trailer's headlights, without manual intervention, which can save manpower and time, and can improve the safety and reliability of the trailer through detection, improve the quality of the vehicle, and avoid safety accidents.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0087] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle detection system, characterized in that: The vehicle includes a tractor and a trailer, and the vehicle detection system includes: A vehicle light power supply detection signal acquisition device, the vehicle light power supply detection signal acquisition device is connected to the light power supply interface of the tractor and is used to acquire a vehicle light power supply detection signal; a trigger diagnostic device, the trigger diagnostic device being connected to the tractor and the headlight power supply detection signal acquisition device, and being used to send a power supply trigger signal to the tractor, and to determine the headlight power supply status of the trailer according to the headlight power supply detection signal; An alarm device is connected to the trigger diagnosis device and is used to alarm when it is determined that the power supply state of the vehicle light is abnormal.

2. The vehicle detection system according to claim 1, characterized in that: The lighting power supply interface of the tractor includes at least one of a left rear position light power supply interface, a left turn light power supply interface, a parking light power supply interface, a right turn light power supply interface, a fog light power supply interface and a reversing light power supply interface.

3. The vehicle detection system according to claim 2, characterized in that: The vehicle lamp power supply detection signal acquisition device comprises: A detection connector, a first end of which is connected to the left rear position light power supply interface, the left turn light power supply interface, the parking light power supply interface, the right turn light power supply interface, the fog light power supply interface and the reversing light power supply interface; A left rear position light detection circuit, a first end of the left rear position light detection circuit being connected to a second end of the detection connector; A left turn signal detection circuit, wherein a first end of the left turn signal detection circuit is connected to a second end of the detection connector; A parking light detection circuit, wherein a first end of the parking light detection circuit is connected to a second end of the detection connector; A right turn signal detection circuit, wherein a first end of the right turn signal detection circuit is connected to a second end of the detection connector; A fog lamp detection circuit, wherein a first end of the fog lamp detection circuit is connected to a second end of the detection connector; A reversing light detection circuit, wherein a first end of the reversing light detection circuit is connected to a second end of the detection connector.

4. The vehicle detection system according to claim 3, characterized in that: The trigger diagnosis device comprises: A diagnostic unit, wherein a first end of the diagnostic unit is connected to a second end of the left rear position light detection circuit, a second end of the left turn light detection circuit, a second end of the parking light detection circuit, a second end of the right turn light detection circuit, a second end of the fog light detection circuit, and a second end of the reversing light detection circuit.

5. The vehicle detection system according to claim 4, characterized in that: The trigger diagnosis device also includes: A trigger unit, a first end of which is connected to the tractor, and is used to send an initial power supply trigger signal to the tractor to control the tractor to supply power to the left rear position light of the trailer.

6. The vehicle detection system according to claim 5, characterized in that: The second end of the trigger unit is connected to the second end of the diagnostic unit. The trigger unit is also used to, after determining that the power supply status of the left rear position light is normal, send a re-power supply trigger signal to the tractor in a preset sequence to control the tractor to respectively supply power to the left turn signal, parking light, right turn signal, fog light, and reverse light of the trailer.

7. The vehicle detection system according to claim 2, characterized in that: Also includes: A docking connector, the docking connector includes a first connector and a second connector, a wire is connected between the first connector and the second connector, the first connector is suitable for connecting to the left rear position light power supply interface, the left turn light power supply interface, the parking light power supply interface, the right turn light power supply interface, the fog light power supply interface and the reversing light power supply interface, and the second connector is suitable for connecting to the headlight power supply detection signal acquisition device.

8. The vehicle detection system according to claim 7, characterized in that: Also includes: An external test light, the external test light includes a third connector and a left rear position light test light, a left turn signal light test light, a parking light test light, a right turn signal light test light, a fog light test light, and a reverse light test light connected to the third connector, and the third connector is suitable for being connected to the tractor.

9. The vehicle detection system according to claim 4, characterized in that: The vehicle detection system also includes: a diagnostic result generating device, the diagnostic result generating device being wirelessly connected to the diagnostic unit and configured to generate a diagnostic result according to a power supply status of a light of the trailer; A printing device, the printing device is connected to the diagnosis result generating device, and is used to receive and print the diagnosis result.

10. A vehicle detection device, characterized in that: include: The vehicle detection system according to any one of claims 1 to 9; at least one processor, the processor and the vehicle detection system being electrically connected to the processor; A memory, the memory is communicatively connected to the at least one processor, and the memory stores a computer program executable by the at least one processor.

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