JP5350764B2 - Vehicle straight running performance inspection system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for inspection of straight-traveling performance of a vehicle capable of analyzing and confirming a factor having an effect on vehicle deviation, while allowing a vehicle to be inspected to travel actually along a test course. <P>SOLUTION: The system includes a measurement unit for measuring an approaching angle of the vehicle to be inspected and a vehicle deviation amount showing a deviation amount to the right and left sides of a traveling vehicle, and an inspection processing device. The measurement unit includes first to third laser transmission and reception devices, and a transmission device for transmitting measurement information measured by each laser transmission and reception device to the inspection processing device, and the inspection processing device includes an approaching angle calculation means for calculating the approaching angle, a deviation amount calculation means for calculating a deviation amount measured value, a vehicle deviation amount determination means for finally determining the vehicle deviation amount correlatively with vehicle discrimination information received from a portable terminal based on calculation results by the approaching angle calculation means and the deviation amount calculation means and on weather information received from a weather measurement unit, and an acceptance determination means for determining inspection acceptance of the vehicle deviation amount determined by the vehicle deviation amount determination means. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a vehicle straight running performance inspection system.

  In an automobile assembly factory, a vehicle completed through an assembly process for assembling each part is subjected to various inspections in an inspection process.

One of vehicle inspections performed in the inspection process is an inspection of straight running performance.
For example, the vehicle to be inspected is actually run on a test course, and on the straight line, the test driver releases the hand from the steering wheel and is held at a constant speed (for example, 100 km / h) on the straight line. The vehicle flow amount indicating how much the vehicle has shifted in the left-right direction is measured at the beginning and end of the inspection section by entering the set inspection section and passing through the inspection section of a predetermined distance.

  The amount of vehicle flow that indicates the distance that a vehicle traveling straight ahead travels in a direction perpendicular to the straight traveling direction to an inspection section of a predetermined distance, such as vehicle-specific alignment, tires, left and right driving forces, etc. However, when there are many roads that run in a straight line on a vast land such as the United States, the straight running performance of the vehicle is positioned as an important running performance.

  As a specific method for detecting such a vehicle flow amount, for example, it is known to measure a distance to a vehicle to be inspected using a laser type distance measuring device (see Patent Document 1). Such an inspection method includes installing a laser type distance measuring device at the first and last positions of the inspection section in which the vehicle to be inspected travels, and irradiating the vehicle to be inspected from the laser type distance measuring device to the laser beam from the emission unit, After the return laser beam is detected by the light receiving unit, the distance from both laser beams to the vehicle to be inspected is calculated, and the measured values a1 and a2 to the vehicle to be inspected are detected. At this time, the flow amount is calculated by the calculation formula b1 × tan θ = (a2−a1) from the distance b1 of the inspection section and the angle θ formed by the traveling direction and the direction perpendicular to the traveling direction.

JP-A-8-313401

  However, in the inspection of the straight traveling performance, it is necessary to determine whether or not the vehicle flow amount is within an allowable value according to the vehicle flow amount described above. If the vehicle flow rate is within the allowable value, it will be rejected. Whether the cause is caused by the factor of the inspected vehicle itself, or the test course at the time of inspection. It was not something that could be analyzed to find out if it was caused by weather conditions. Further, in this type of inspection including Patent Document 1, no system has been established that can systematically implement from the start to the end of the inspection.

  Accordingly, the present invention provides a vehicle straight-running performance inspection system capable of smoothly inspecting the straight-run performance of a vehicle while analyzing the factors affecting the vehicle flow while actually running the vehicle to be inspected on a test course. The purpose is to provide.

  Accordingly, in order to achieve this object, the invention according to claim 1 is a vehicle straight running performance inspection system for running a vehicle on a test course and inspecting the straight running performance of the vehicle, which is brought into the vehicle to be inspected. A portable terminal that reads vehicle identification information from a vehicle code in which vehicle information of the vehicle to be inspected is recorded, a weather measurement unit that measures weather information in the test course on which the vehicle to be inspected travels, and the test A measuring unit for measuring a vehicle flow amount indicating an approach angle of a traveling vehicle to be inspected and a traveling vehicle flowing left and right installed on a straight road of a course; and installed outside the test course; An inspection processing device that is wirelessly connected to each other and is connected to each of the weather measurement unit and the measurement unit by wire or wirelessly, and the measurement unit is along the straight path First to third laser transmission / reception devices that measure the distance to the vehicle by emitting laser beams toward the vehicle to be inspected that are arranged at predetermined intervals and travel on the straight path, and each laser transmission / reception device A transmission device that transmits measurement information measured by the inspection processing device to the inspection processing device, and the inspection processing device enters the vehicle to be inspected based on measurement results of the first laser transmission / reception device and the second laser transmission / reception device. An approach angle calculating means for calculating an angle, a flow amount calculating means for calculating a flow amount measurement value of the vehicle to be inspected based on a measurement result by the second laser transmitting / receiving device and the third laser transmitting / receiving device, and the approach angle Based on the calculation results by the calculation means and the flow amount calculation means and the weather information received from the weather measurement unit, the vehicle flow amount of the vehicle to be inspected is received from the portable terminal. And the vehicle flow quantity determining means for final decision in relation to the vehicle identification information, the acceptance determination means for determining a test acceptability of the vehicle flow amount determined by the vehicle flow quantity determining means, and a further comprising a.

  According to a second aspect of the present invention, in the vehicle straight-ahead performance inspection system according to the first aspect, the inspection processing device further includes a pass / fail result transmitting means for transmitting a determination result by the pass / fail determination means to the portable terminal. On the other hand, the portable terminal includes a display unit that displays the received determination result.

  According to a third aspect of the invention, in the vehicle straight-ahead performance inspection system according to the first or second aspect, the handle angle is measured by attaching to the handle of the vehicle to be inspected, and the amount of change in the handle angle is calculated. A handle angle measuring device that can be detected and wirelessly connected to the portable terminal further includes a handle angle measuring device that transmits a change amount of the handle angle to the portable terminal. The amount of change in the handle angle received from the angle measuring device is transmitted to the inspection processing device, and the inspection processing device uses the amount of change in the handle angle received from the portable terminal as a result of the acceptance / rejection determination unit. It was decided to refer to this when making a decision.

  According to a fourth aspect of the present invention, in the vehicle straight-travel performance inspection system according to the third aspect, the handle angle measuring device is mounted at a substantially central position of the handle and at an upper position than the handle center. An acceleration sensor that detects the angle of the handle, an A / D conversion unit that converts an analog signal detected by the acceleration sensor into a digital signal, a central processing unit, and a recording unit are provided in a thin box-shaped casing that can be used. The microcomputer unit, a communication data conversion unit that converts digital signals into communication data, and a wireless communication unit that transmits communication data to the portable terminal are housed.

  According to the present invention, it is possible to smoothly inspect the straight running performance of a vehicle while analyzing a factor affecting the vehicle flow while actually running the vehicle to be inspected on a test course. It becomes possible to reasonably and accurately make a pass / fail judgment on the vehicle flow that relies on the experience of the test driver. In addition, there is also an effect that a factor affecting the vehicle flow can be instantaneously analyzed and confirmed in the vehicle flow inspection of the vehicle to be inspected.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a configuration diagram for explaining the outline of a vehicle straight running performance inspection system according to the present embodiment, FIG. 2 (a) is a perspective view showing a handle angle measuring device, and FIG. 2 (b) is a portable terminal and a handle angle measuring device. FIG. 3A is a front view showing a state in which the handle angle measuring device is attached to the handle in the vehicle, and FIG. 3B shows a state in which the handle angle measuring device is attached to the handle in the vehicle. FIG. 4A is a block diagram showing a portable terminal, FIG. 4B is a block diagram showing an inspection processing apparatus, and FIG. 5 is an explanatory diagram showing a vehicle flow amount measurement state.

[Configuration of straight running performance inspection system]
As shown in FIG. 1, the vehicle straight running performance inspection system 1 according to the present embodiment is configured to test the straight running performance of the vehicle 2 by running the vehicle (inspected vehicle 2) on the test course C. is there.

  That is, a portable terminal 10 that can be brought into the inspected vehicle 2 and reads vehicle identification information from a vehicle code 4 in which vehicle information of the inspected vehicle 2 is recorded, and the test course C in which the inspected vehicle 2 travels. A weather measurement unit 18 that measures weather information in the vehicle, and a vehicle that is installed on a straight road of the test course C and that indicates an approach angle θ (see FIG. 5) of the traveling vehicle 2 to be inspected and an amount of the traveling vehicle flowing left and right. A measuring unit 40 for measuring a flow amount T (see FIG. 5), installed outside the test course C, and wirelessly connected to the portable terminal 10 so as to communicate with each other, and the meteorological measuring unit 18 and the measuring unit 40 and the inspection processing device 20 connected to each of them by wire or wirelessly.

  The measuring unit 40 is arranged at a predetermined interval along the straight path, and emits a laser beam toward the inspected vehicle 2 traveling on the straight path to reach the inspected vehicle 2. First, second, and third laser transmission / reception devices 41, 42, and 43 that measure the distance, and a transmission device 44 that transmits measurement information measured by each of the laser transmission / reception devices 41, 42, and 43 to the inspection processing device 20. 45, 46, and the inspection processing device 20 calculates an approach angle θ for calculating an approach angle θ of the vehicle 2 to be inspected based on the measurement results of the first laser transmitting / receiving device 41 and the second laser transmitting / receiving device 42. The flow amount for calculating the flow amount measurement value of the vehicle 2 to be inspected based on the measurement results by the means (the control unit 21 in FIG. 4B), the second laser transmission / reception device 42, and the third laser transmission / reception device 43. Calculation Based on the stage (the control unit 21 in FIG. 4B), the calculation results by the approach angle calculation unit and the flow rate calculation unit, and the weather information received from the weather measurement unit 18, the vehicle under test 2 The vehicle flow amount T of the vehicle is determined by the vehicle flow amount determination means (the control unit 21 in FIG. 4B) that finally determines the vehicle flow amount T in association with the vehicle identification information received from the portable terminal 10 and the vehicle flow amount determination means. Pass / fail judgment means (control unit 21 in FIG. 4B) for judging whether or not the vehicle flow rate T is inspected.

  With such a configuration, it is possible to systematically inspect the vehicle straight running performance while analyzing the factor affecting the vehicle flow while actually running the vehicle 2 to be inspected on the test course C. Therefore, it is possible to reasonably and accurately perform the pass / fail judgment of the vehicle flow that has been relied on the experience of the test driver. Furthermore, it is possible to instantly analyze the factors that affect the vehicle flow of the vehicle 2 to be inspected.

  By the way, the vehicle 2 to be inspected is a vehicle before completion of automobile assembly and before shipment. In this embodiment, the vehicle 2 to be inspected is defined as the first measurement position P and the second measurement on the straight path of the test course C. While passing through the position Q and the third measurement position R in order, the distance to the vehicle 2 to be inspected is measured by the measuring unit 40 provided outside the test course C. Then, the inspection processing apparatus 20 calculates the approach angle and the flow rate measurement value based on the measurement information, and receives the vehicle flow rate from the portable terminal 10 by referring to these calculation results and the acquired weather information. After the final determination is made in association with the vehicle identification information, the vehicle flow amount inspection pass / fail is determined.

Hereinafter, the configuration of the straight traveling performance inspection system 1 will be described more specifically.
A vehicle information sheet 3 that can identify the vehicle and read various information related to the vehicle is attached to the inspected vehicle 2.

  The vehicle information sheet 3 prints vehicle information such as the frame number, body number, and frame classification of the vehicle 2 to be inspected, and further prints a vehicle code 4 on which various other vehicle information is recorded, for example, as a QR code. Yes. In addition to the QR code method, a bar code method may be used.

  As the vehicle code 4, for example, a readable / writable IC other than a method of reading vehicle identification information from the vehicle code 4 by the imaging unit 11 (see FIG. 2B) to be described later from the vehicle code 4 is used. A chip may be built in a sheet-like card, and vehicle information may be recorded on the IC chip. In this case, the portable terminal 10 may include an IC chip reading unit, and the reading unit can read the vehicle identification information in the IC chip.

  As shown in FIGS. 2 (b) and 4 (a), the portable terminal 10 is an imaging unit made up of a CCD, CMOS, or the like that reads vehicle information from a QR code 4 of a vehicle information sheet 3 attached to the vehicle 2 to be inspected. 11, a display unit 12 that displays vehicle identification information and information on pass / fail determination of a vehicle flow inspection transmitted from the inspection processing device 20 described later, a keypad unit 13 that inputs various information to be displayed on the display unit 12, A handle angle measuring device 60 (see FIG. 3) that is provided at the center upper portion of the handle 5 of the vehicle 2 to be inspected and detects the turning angle of the handle 5; A recording unit 15 that records vehicle identification information, information on a change amount of the steering wheel angle measured by the steering wheel angle measuring device 60, and a control unit 16 that controls each unit of the portable terminal 10. The handle angle measuring device 60 will be described in detail later.

  The communication unit 14 includes, for example, a wireless LAN (Local Area Network) as a communication function for performing bidirectional communication between, for example, Bluetooth (registered trademark) and the inspection processing device 20 as a communication function for performing communication with the handle angle measuring device 60. And combine.

  As shown in FIG. 1, the meteorological measurement unit 18 is provided in the vicinity of the test course C so as to have substantially the same environment as the test course C on which the vehicle 2 to be inspected travels. The meteorological information of the approximate temperature, humidity, wind direction, wind speed, and atmospheric pressure is measured once every 6 seconds, for example, and transmitted to the inspection processing device 20 via the meteorological communication device 19.

  The meteorological communication device 19 is communicably connected to the inspection processing device 20 by wire or wireless.

  The test course C is provided with a straight road and a corner road that allow the vehicle to run and perform various inspections. The straight road has a start point (not shown) at which the vehicle to be inspected starts running, The first measurement position P is set at a predetermined interval from the start point, that is, a position where the inspected vehicle 2 can accelerate to a predetermined speed, and the first measurement position P is spaced from the first measurement position P by a predetermined interval. Two measurement positions Q are set, and a third measurement position R is set at a predetermined interval from the second measurement position Q. And the measurement part 40 for measuring the flow amount of the right and left of the to-be-inspected vehicle 2 which is drive | working is provided in the 1st-3rd measurement position. For example, the distance between the first measurement position P and the second measurement position Q is 25 m, and the distance between the second measurement position Q and the third measurement position R is 100 m.

  As shown in FIG. 1, the measurement unit 40 includes a first laser transmitting / receiving device 41 in a direction perpendicular to the traveling direction at the first measurement position P, and a second laser in a direction perpendicular to the traveling direction at the second measurement position Q. A transmission / reception device 42 is provided, and a third laser transmission / reception device 43 is provided in a direction perpendicular to the traveling direction at the third measurement position R. The first to third laser transmitting / receiving devices 41, 42, and 43 are connected to first to third transmitting devices 44, 45, and 46 that communicate with the inspection processing device 20, respectively.

  As shown in FIG. 5, each of the laser transmitting / receiving apparatuses 41, 42, 43 is reflected from the emission parts 41 a, 42 a, 42 c that emit laser beams L 1, L 2, L 3 to the inspected vehicle 2 and the inspected vehicle 2. Receivers 41b, 42b, and 43b that receive the return laser beams L1 ′, L2 ′, and L3 ′, and convert the laser beams L1, L2, and L3 and the return laser beams L1 ′, L2 ′, and L3 ′ from analog signals to digital signals. Each A / D converter 41c, 42c, 43c, and each return laser obtained by reflecting each laser beam L1, L2, L3 emitted from each emitting part 41a, 42a, 43a to the vehicle 2 to be inspected. First to third measurement information, which are distances from the lights L1 ′, L2 ′, L3 ′ to the vehicle 2 to be inspected, are calculated. The first to third measurement information is transmitted from the input / output units 41d, 42d, and 43d to the inspection processing device 20 via the first to third transmission devices 44, 45, and 46, respectively.

  As shown in FIG. 4B, the inspection processing device 20 includes a control unit 21 that functions as various means, a portable terminal 10, a meteorological communication device 19, and first to third transmission devices 44, 45, and 46. A communication unit 22 that transmits and receives various types of information, a recording unit 23 that records various types of information, a display monitor unit 24 that displays various types of information, and a keyboard 25 that is an input device are provided.

  The various information includes weather information, vehicle identification information, first to third measurement information that is the distance from the laser transmission / reception devices 41, 42, and 43 to the vehicle 2 to be inspected, the amount of change in the handle angle, and various means that will be described later. Is the value to be

  The control unit 21 includes an approach angle calculation unit that calculates an approach angle of the vehicle 2 to be inspected based on the first measurement information and the second measurement information of the measurement results obtained by the first laser transmission / reception device 41 and the second laser transmission / reception device 42; A flow amount calculation means for calculating a flow amount measurement value of the vehicle 2 to be inspected based on the second measurement information and the third measurement information of the measurement results obtained by the second laser transmission / reception device 42 and the third laser transmission / reception device 43; The vehicle flow amount of the inspected vehicle 2 is finally determined in association with the vehicle identification information received from the portable terminal 10 based on the calculation results by the means and the flow amount calculation means and the weather information received from the weather measurement unit 18. It functions as a vehicle flow rate determination means and a pass / fail determination means for determining whether the vehicle flow rate determined by the vehicle flow rate determination means is acceptable.

  Further, the control unit 21 may serve as speed calculation means for calculating the speed of the vehicle 2 to be inspected based on the second measurement information and the third measurement information of the measurement results obtained by the second laser transmission / reception device 42 and the third laser transmission / reception device 43. It functions.

  The communication unit 22 (see FIG. 4B) enables two-way communication. The vehicle identification information transmitted from the communication unit 14 of the portable terminal 10 and the amount of change in the handle angle measured by the handle angle measuring device 60, The meteorological information transmitted from the meteorological communication device 19 and the first to third measurement information transmitted from the first to third transmitting devices 44, 45, 46 are received, and further, whether or not the vehicle flow rate is inspected is determined. The transmitted information and various types of information are transmitted to the portable terminal 10.

  The recording unit 23 includes vehicle identification information, weather information, first to third measurement information, a change amount α of the steering wheel angle measured by the steering wheel angle measuring device 60, calculation results by the approach angle calculation unit and the flow amount calculation unit, and pass / fail An inspection pass / fail result of the vehicle flow amount by the determination means is recorded.

  The display monitor unit 24 calculates the weather information associated with the vehicle identification information recorded by the recording unit 23, the first to third measurement information, the change amount α of the handle angle measured by the handle angle measuring device 60, and the approach angle calculation. The calculation results by the means and the flow amount calculation means, the vehicle flow amount inspection pass / fail result by the pass / fail determination means, and the like are displayed.

[Incoming angle of vehicle under inspection]
The approach angle θ of the vehicle 2 to be inspected is an angle formed by the straight traveling direction that is the reference of the vehicle 2 to be inspected and the actual traveling direction, and as shown in FIG. This is the angle when Q is the position Q ′. Therefore, the approach angle θ of the vehicle 2 to be inspected can be calculated as follows.

  That is, as shown in FIG. 5, when the inspected vehicle 2 travels in a section from the first measurement position P to the second measurement position Q, the inspection processing device 20 receives the first measurement information from the first laser transmission / reception device 41. The second measurement information is obtained from the second laser transmitting / receiving device 42. That is, the first measurement information that is the distance from the first laser transmission / reception device 41 to the vehicle 2 to be inspected at the first measurement position P, and the distance from the second laser transmission / reception device 42 to the vehicle 2 to be inspected at the second measurement position Q. When the second measurement information is transmitted to the inspection processing device 20, the approach angle calculation means of the control unit 21 of the inspection processing device 20 obtains the first measurement information, the second measurement information, and the first measurement position. Based on the distance from P to the second measurement position Q, the approach angle θ of the inspected vehicle 2 at the second measurement position Q is calculated by a trigonometric function.

[Vehicle flow rate of inspected vehicle]
The vehicle flow amount T (see FIG. 5) is an amount of change in the lateral direction (left-right direction) while the inspected vehicle 2 travels from the first measurement position P to the third measurement position R, and is the first measurement position. When the position of P is used as a reference, it is represented by a difference from the flow position R ′ at the third measurement position R. However, when the approach angle θ to the first measurement position P is not zero, the correction is necessary. Therefore, the vehicle flow amount T of the vehicle under test 2 in the present embodiment is calculated as follows.

  That is, as shown in FIG. 5, when the inspected vehicle 2 travels in a section from the second measurement position Q to the third measurement position R, the inspection processing device 20 receives the second measurement information from the second laser transmission / reception device 42. The third measurement information is obtained from the third laser transmitting / receiving device 43. That is, the second measurement information that is the distance from the second laser transmission / reception device 42 to the inspected vehicle 2 at the second measurement position Q, and the distance from the third laser transmission / reception device 43 to the inspected vehicle 2 at the third measurement position R. Is transmitted to the inspection processing device 20, the flow amount calculation means of the control unit 21 of the inspection processing device 20 starts from the second and third measurement information and the second measurement position Q. Based on the distance to the third measurement position R, a flow amount measurement value of the vehicle 2 to be inspected at the third measurement position R is calculated by a trigonometric function. Then, the vehicle flow amount determining means calculates the vehicle flow amount of the vehicle 2 to be inspected based on the approach angle θ calculated by the approach angle calculating means. At this time, if necessary, the vehicle flow amount of the vehicle 2 to be inspected is finally determined in consideration of the weather information received from the weather measurement unit 18 and recorded in association with the vehicle identification information received from the portable terminal 10.

Next, a handle angle measuring device 60 that is attached to the handle 5 and measures the angle of the handle 5 will be described.
As shown in FIG. 2A, the handle angle measuring device 60 includes various devices and devices in a casing 71 that is formed by bending a rectangular parallelepiped from an intermediate portion in the longitudinal direction at an obtuse angle and having a substantially mountain shape in side view. It is constructed by incorporating a kind. The casing 71 according to the present embodiment has a box on the proximal end side having a height H1 of 20 mm, a width W1 of 75 mm, and a length L1 of 70 mm, a height H2 of 25 mm, a width W2 of 75 mm, and a length L2 of 80 mm. The front end side box is formed into an integrated shape.

  That is, as shown in FIG. 2B, the handle angle measuring device 60 includes an acceleration sensor 61 that detects the angle of the handle 5, and an A / D converter that converts an analog signal detected by the acceleration sensor 61 into a digital signal. 62, a central processing unit 63, a microcomputer unit 65 having a recording unit 64 composed of a readable / writable ROM and RAM, a communication data converting unit 66 for converting a digital signal into communication data, and the communication data to the portable terminal 10 A switch that stores a wireless communication unit 67 that transmits via an antenna 75 and a battery 68 for power supply for driving the apparatus 60 in a casing 71 and starts and ends an operation for measuring a handle angle. 69 is a casing 71, a reference point switch 70 for setting 0 degree (reference point) of the handle 5, and a left and right reference point setting switch. A pitch 72 and 73, comprising a measurement ready lamp 74 has a configuration provided in the casing 71.

  As shown in FIG. 3, the handle angle measuring device 60 has a box portion on the base end side on the upper surface of the central portion 5 a in the handle 5 so as to measure the handle angle of the vehicle 2 to be inspected by a fastening band 80. While being fastened, it is attached in a state where the box portion on the front end side extends obliquely downward. In this embodiment, the switch 69 that starts and ends the operation is configured to be extended from the casing 71 so as to be attached to the grip on the periphery of the handle 5, so that the test driver can easily push the driver during traveling. doing.

  The handle angle measuring device 60 has a casing 71 that is compactly formed as described above, and is attached to the central portion 5a of the handle 5 in the form as described above. There is an effect that it does not become an obstacle when the handle 5 is operated, and further does not become an obstacle when the speedometer 51 in the instrument panel 50 on the back is visually recognized. Moreover, since the operation of the airbag mounted in the handle 5 is not hindered, the test driver can safely run the vehicle 2 to be inspected and perform the vehicle flow inspection.

[Change in handle angle]
The change amount α (see FIG. 3A) of the handle angle by the handle angle measuring device 60 is measured as follows.

  In a state where the vehicle 2 to be inspected is stopped at the start point of the test course C, the reference point switch 70 is pressed to set the reference point of the handle 5. When the switch 69 (see FIG. 3) is turned on before the first measurement position P (see FIG. 5) after the vehicle 2 to be inspected reaches a predetermined speed, the measurement starts, and the acceleration sensor 61 (FIG. 2 (b)). When a change amount α of the steering wheel angle of the vehicle 2 to be inspected is detected, a predetermined signal is output, and a signal of the change amount α of the steering wheel angle is recorded in the recording unit 64 (see FIG. 2B).

  When the inspected vehicle 2 passes the third measurement position R (see FIG. 5), the switch 69 (see FIG. 3) is pressed to finish the measurement. A handle angle change amount α signal is read from the recording unit 64 (see FIG. 2B), converted into communication data by the communication data conversion unit 66, and the handle angle change amount α communication from the wireless communication unit 67. Data is transmitted to the portable terminal 10.

  The portable terminal 10 records the received handle angle change amount α in the recording unit 15, and then transmits the handle angle change amount α to the inspection processing device 20 (see FIG. 1) via a wireless line from the communication unit 14.

  The inspection processing apparatus 20 records the received change amount α of the handle angle in the recording unit 23 (see FIG. 4B). The change amount α of the handle angle is referred to at the time of inspection pass / fail determination by the pass / fail determination means in the control unit 21 of the inspection processing apparatus 20 described later.

[Vehicle flow inspection procedure by straight running performance inspection system]
The procedure of the vehicle flow inspection performed using the straight traveling performance inspection system 1 of the present embodiment will be described. FIG. 6 is an explanatory diagram showing a flow of inspection by the straight-ahead performance inspection system 1 of the present embodiment, and FIG. 7 is a list of inspection results displayed on the display monitor unit of the inspection processing apparatus.

  The weather measurement unit 18 (see FIG. 1) measures the weather information on the wind direction, wind speed, temperature, humidity, and atmospheric pressure on the test course C (step S20). In the present embodiment, the weather measurement unit 18 samples weather information every 6 seconds, for example.

  The weather measurement unit 18 transmits the acquired weather information to the inspection processing device 20 via the weather communication device 19 (step S21). The weather information transmitted from the weather measurement unit 18 is recorded in the recording unit 23 (see FIG. 4B) as shown in step S16 in the processing flow of the inspection processing device 20. .

  In addition, before the inspected vehicle 2 travels on the test course C, the test driver preliminarily receives the QR code 4 of the vehicle information sheet 3 (see FIG. 1) attached to the inspected vehicle 2 and the imaging unit 11 of the portable terminal 10. (See FIG. 2B) (Step S10). The result of reading is displayed on the display unit 12 of the portable terminal 10 as vehicle identification information is read from the vehicle information.

  The portable terminal 10 transmits vehicle identification information to the inspection processing device 20 via the communication unit 14. The inspection processing device 20 records the received vehicle identification information. Further, the handle angle measuring device 60 is attached to the upper part of the handle 5 (see FIG. 3). Thus, the vehicle flow measurement preparation is made (step S11), and the inspected vehicle 2 stops at the starting point of the test course C and waits for the order of measurement of the vehicle flow amount by the measuring unit 40 (see FIG. 1).

The vehicle flow rate is measured according to the following procedure.
When the test driver presses the reference point switch 70 of the handle angle measuring device 60 attached to the upper part of the handle 5 (see FIG. 3) to set the reference point of the handle 5, the change amount of the handle angle is triggered by this switch pressing operation. Measurement of α is started (step S30).

  Specifically, the test driver presses the reference point switch 70 and causes the vehicle 2 to be inspected to travel from the start point. Then, immediately before reaching the first measurement position P, the vehicle 2 to be inspected is accelerated from the start point so as to reach a predetermined speed, for example, 100 km / h. Then, the test driver causes the vehicle 2 to be inspected to travel so as to maintain this predetermined speed until it passes through the first to third measurement positions P, Q, and R.

  In the measurement of the vehicle flow amount, first, the measurement of the approach angle of the vehicle 2 to be inspected is started. That is, when the vehicle 2 to be inspected approaches the first measurement position P (see FIG. 5) while maintaining a predetermined speed, the test driver releases the hand from the handle 5. In this state, the approach angle measurement of the vehicle 2 to be inspected is started at the timing when the vehicle 2 to be inspected passes the first measurement position P (step S12).

  At the first measurement position P (see FIG. 5), the first laser beam L1 is emitted forward from the emission portion 41a of the first laser transmitting / receiving apparatus 41, and the vehicle is passing when the vehicle 2 to be inspected passes. The first return laser beam L1 ′ reflected by the vehicle 2 to be inspected is received by the receiver 41b, and the distance from the first laser beam L1 and the return first laser beam L1 ′ to the vehicle 2 to be inspected. 1 Measurement information is calculated. The first measurement information is transmitted to the inspection processing device 20 (see FIG. 4B) via the first transmission device 44. The inspection processing device 20 records the received first measurement information in the recording unit 23.

  Next, the vehicle 2 to be inspected passes through the second measurement position Q (see FIG. 5) at a predetermined speed. At this time, the approach angle measurement of the vehicle 2 to be inspected is finished (step S13) and the measurement of the vehicle flow amount is started (step S14).

  At the second measurement position Q, the second laser beam L2 is emitted from the emitting portion 42a of the second laser transmitting / receiving device 42, and the second laser transmitting / receiving device 42 is reflected from the vehicle 2 to be inspected passing forward. The returned second laser beam L2 ′ is received by the receiver 42b, and second measurement information that is the distance from the second laser beam L2 and the returned second laser beam L2 ′ to the vehicle 2 to be inspected is calculated. The second measurement information is transmitted to the inspection processing device 20 (see FIG. 4B) via the second transmission device 45. The inspection processing device 20 records the received second measurement information in the recording unit 23.

  Subsequently, the vehicle 2 to be inspected passes the third measurement position R (see FIG. 5) at a predetermined speed. At this time, the measurement of the vehicle flow rate of the vehicle 2 to be inspected is terminated (step S15). At the third measurement position R, the third laser beam L3 is emitted from the emission portion 43a of the third laser transmission / reception device 43 toward the vehicle 2 to be inspected passing forward, and the third laser transmission / reception device 43 is The third measurement information that is the distance from the third laser beam L3 and the returned third laser beam L3 ′ to the vehicle 2 to be inspected is received by the receiver 43b after the return third laser beam L3 ′ reflected from the inspection vehicle 2 is received. Is calculated. The third measurement information is transmitted to the inspection processing device 20 (see FIG. 4B) via the third transmission device 46. The inspection processing device 20 records the received third measurement information in the recording unit 23.

  When the vehicle 2 to be inspected passes the third measurement position R (see FIG. 5), the switch 69 for starting the operation of the handle angle measuring device 60 (see FIG. 3) provided on the periphery of the handle 5 is pressed, and the handle angle The measurement of the amount of change is terminated (step S31).

  In the period from the start to the end of the measurement of the handle angle change amount α, the handle angle change amount α is recorded in the recording unit 64 of the handle angle measuring device 60 (see FIG. 2B). The change amount of the handle angle recorded in the recording unit 64 is transmitted from the communication data conversion unit 66 to the portable terminal 10 via the wireless communication unit 67. The portable terminal 10 records the received handle angle change α in the recording unit 15 (see FIG. 4A) (step S32).

  Then, the change amount α of the handle angle recorded in the recording unit 15 of the portable terminal 10 is transmitted to the inspection processing device 20 (see FIG. 4B) via the communication unit 14 via a wireless line. The inspection processing apparatus 20 records the received handle angle change amount α in the recording unit 23. Further, the test driver can visually recognize the change amount α of the handle angle displayed on the portable terminal 10 in the inspected vehicle 2.

  As described above, the recording unit 23 of the inspection processing device 20 (see FIG. 4B) is configured to record the weather information, vehicle identification information, first to third measurement information, the change amount α of the steering wheel angle, and the object calculated by various means. The approach angle θ of the inspection vehicle 2, the flow amount measurement value of the inspection vehicle 2, and the speed of the inspection vehicle 2 in the section from the second measurement position Q to the third measurement position R are recorded (step S16).

  The control unit 21 of the inspection processing device 20 receives the approach angle θ of the vehicle 2 to be inspected, the flow amount measurement value of the vehicle 2 to be inspected as the calculation results by the approach angle calculation unit and the flow rate calculation unit, and the weather measurement unit 18. Based on the meteorological information, the vehicle flow amount determining means finally determines the vehicle flow amount of the inspected vehicle 2 in association with the vehicle identification information received from the portable terminal 10. Then, the pass / fail determination means compares the final determined vehicle flow amount with the comparison table to determine whether or not the vehicle flow amount is within an allowable value. If the vehicle flow amount is within the allowable value, it is acceptable, and if it is outside the allowable value, it is unacceptable.

  The acceptance / rejection determination unit compares the handle angle change amount read from the recording unit 23 with the comparison table to determine whether the handle angle change amount is within an allowable value. If the change amount of the handle angle is within the allowable value, it is acceptable, and if it is outside the allowable value, it is unacceptable.

  Then, the pass / fail determination means makes a comprehensive determination of pass / fail of the inspection based on the weather information, the vehicle flow determination result, and the steering angle determination result in association with the vehicle identification information.

  The display monitor unit 24 of the inspection processing device 20 displays determination results of various vehicle flow inspections described later (step S18).

  That is, the list shown as an example in FIG. 7 is displayed on the display monitor unit 24. In the list, the date, time, vehicle identification number, vehicle speed, and vehicle date of the vehicle flow inspection of the inspected vehicle 2 are displayed. The flow amount, vehicle flow determination, steering angle, steering angle determination, weather information, and comprehensive determination result are displayed in order.

  For example, if the frame number of the vehicle identification number is “2067026”, the vehicle speed “98 Km / h” and the vehicle flow rate “0.197 m” calculated from the second measurement information and the third measurement information are associated with this. The vehicle flow determination that is displayed and determined by the pass / fail determination means is passed, and “OK” is displayed.

  Furthermore, the steering angle “0.60 °” measured by the steering angle measuring device 60 is displayed, and the steering angle determination determined by the pass / fail determination means is accepted and “OK” is displayed.

  In addition, the wind direction “west-northwest”, the wind speed “0.9 m / s”, the temperature “24 ° C.”, the humidity “58%”, and the atmospheric pressure “1013 HPa” in the weather information are displayed. At this time, the comprehensive determination result determined by the pass / fail determination means is comprehensively determined from the vehicle flow determination, the steering angle determination, and the weather information, and is passed, and “OK” is displayed.

  In addition, the control unit 21 of the inspection processing device 20 transmits the pass / fail information to the portable terminal 10 by the pass / fail result transmission means, and is received by the portable terminal 10 of the vehicle 2 to be inspected.

  Then, the test driver stops the inspected vehicle 2 outside the test course C and confirms the carrying terminal 10. At this time, the vehicle flow pass / fail information of the list shown in FIG. 7 is displayed on the display unit 12 of the portable terminal 10 (see FIG. 2B). If the comprehensive determination result is acceptable, the vehicle flow inspection is terminated (step S17).

[Inspection processing equipment]
The straightness inspection of the vehicle is performed according to the above-described procedure. Here, processing performed by the inspection processing device 20 in the straight traveling performance inspection system 1 will be described. FIG. 8 is a flowchart showing various processes performed by the inspection processing apparatus. FIG. 9 is a flowchart showing a processing subroutine of the inspection processing apparatus of FIG.

  The control unit 21 of the inspection processing device 20 determines whether or not the vehicle identification information read by the portable terminal 10 from the QR code 4 of the vehicle information sheet 3 has been received from the portable terminal 10 (step S100). In other words, the control unit 21 repeats the same process until receiving the vehicle identification information, and proceeds to the process of step S101 when receiving the vehicle identification information.

  In step S101, the control unit 21 specifies the inspected vehicle 2 based on the received vehicle identification information (step S101). Next, the control unit 21 determines whether vehicle information of the specified inspected vehicle 2 exists (step S102). That is, whether or not the vehicle specified by the vehicle identification information exists, and if there is, specification information such as the tire type, manufacturer, and drive system as the vehicle specification specified by the vehicle identification information is produced and managed. It is determined whether or not the device 6 exists.

  And when there exists the applicable vehicle corresponding to vehicle identification information and the specification information of the vehicle is acquired, the notification to that effect is performed to the carrying terminal 10 (step S103). At this time, the control unit 21 transmits a start signal for operating the first laser transmission / reception device 41 of the measurement unit 40.

  The portable terminal 10 that has received the notification that there is a corresponding vehicle corresponding to the vehicle identification information displays “SET OK” on the display unit 12 indicating that measurement preparation for vehicle flow inspection is completed. Then, when the test driver presses the reference point switch 70 of the handle angle measuring device 60 after adjusting the handle 5 of the vehicle 2 to be inspected to zero angle, the handle angle measuring device 60 is started. At this time, the test driver starts traveling the vehicle 2 to be inspected at the start point of the test course C.

  On the other hand, if the production management device 6 does not have information corresponding to the vehicle identification information of the vehicle 2 to be inspected, the control unit 21 transmits a notification of no corresponding vehicle to the portable terminal 10 (step S104), and ends the inspection process. In other words, for example, a notification that the vehicle identification information is not in the information accumulated in the production management device 6 is transmitted to the portable terminal 10. The display unit 12 of the portable terminal 10 that has received the message displays “NO SET” indicating that the vehicle flow test cannot be measured. The test driver stops the vehicle flow amount inspection of the vehicle 2 to be inspected, re-registers the information regarding the vehicle 2 to be inspected in the production management device 6, and performs the vehicle flow inspection again.

  In step S105, the measurement unit 40 performs a measurement process. This process will be described based on the flowchart of FIG.

  As shown in FIG. 9, in step S120, the control unit 21 transmits a start signal for operating the first laser transmission / reception device 41, and the first laser transmission / reception device 41 that has received the start signal receives laser light from the emission unit 41a. L1 is irradiated, and the return laser beam L1 ′ from the vehicle 2 to be inspected is received.

  In step S121, the control unit 21 receives the first measurement information measured by the laser beam L1 and the return laser beam L1 ′ when the inspected vehicle 2 passes the first measurement position P on the straight road of the test course C. Judge whether or not. That is, the first measurement information obtained from the laser beam L1 irradiated to the vehicle 2 to be inspected and the return laser beam L1 ′ reflected from the vehicle 2 to be inspected is transmitted to the inspection processing device 20 via the first transmitter 44. If the first measurement information is received, the inspection processing apparatus 20 records the first measurement information in the recording unit 23 and proceeds to the next step S122.

  On the other hand, when the control unit 21 does not receive the first measurement information in step S121, the process proceeds to step S130. In step S130, the control unit 21 continuously irradiates the laser beam L1 from the first laser transmitting / receiving device 41. It is determined whether the time has reached a predetermined time. If the predetermined time has not been reached, the process returns to step S121.

  If the predetermined time has been reached, the process proceeds to step S131. In step S131, the control unit 21 transmits a signal for stopping the irradiation of the laser light of the first laser transmitting / receiving apparatus 41, and the first laser transmitting / receiving apparatus 41 stops the irradiation of the laser light based on the received stop signal.

  In step S <b> 122, the control unit 21 transmits a start signal to the second laser transmission / reception device 42 and transmits a stop signal to the first laser transmission / reception device 41. Then, the second laser transmitting / receiving device 42 that has received the start signal irradiates the laser beam L2 from the emitting portion 42a. In addition, the first laser transmitting / receiving apparatus 41 that has received the stop signal stops the irradiation of the laser light L1.

  In step S123, the control unit 21 receives the second measurement information measured by the laser beam L2 and the return laser beam L2 ′ when the inspected vehicle 2 passes the second measurement position Q on the straight road of the test course C. Judge whether or not. That is, the second measurement information obtained from the laser beam L2 irradiated to the vehicle 2 to be inspected and the return laser beam L2 ′ reflected from the vehicle 2 to be inspected is transmitted to the inspection processing device 20 via the second transmitter 45. If the second measurement information is received, the inspection processing apparatus 20 records the second measurement information in the recording unit 23, and proceeds to the next step S124.

  On the other hand, if the control unit 21 does not receive the second measurement information in step S123, the process proceeds to step S132, where the control unit 21 continuously receives the laser beam L2 from the second laser transmitting / receiving device 42 for a predetermined time. Judge whether or not the time has been reached. If the predetermined time has not been reached, the process returns to step S123.

  If the predetermined time has been reached, the process proceeds to step S133. In step S133, the control unit 21 transmits a signal for stopping the irradiation of the laser beam of the second laser transmission / reception device 42, and the second laser transmission / reception device 42. Stops the irradiation of the laser beam based on the received stop signal.

  In step S <b> 124, the control unit 21 transmits a start signal to the third laser transmission / reception device 43 and transmits a stop signal to the second laser transmission / reception device 42. Then, the third laser transmitting / receiving apparatus 43 that has received the start signal irradiates the laser beam L3 from the emitting portion 43a. In addition, the second laser transmitting / receiving device 42 that has received the stop signal stops the irradiation of the laser light L2.

  In step S125, the control unit 21 receives the third measurement information measured by the laser light L3 and the return laser light L3 ′ when the inspected vehicle 2 passes the third measurement position R on the straight road of the test course C. Judge whether or not. That is, the third measurement information obtained from the laser beam L3 irradiated to the vehicle 2 to be inspected and the reflected laser beam L3 ′ reflected is transmitted to the inspection processing device 20 via the third transmission device 46, and the inspection processing device 20 When this third measurement information is received, it is recorded in the recording unit 23, and the process proceeds to the next step S126.

  On the other hand, when the control unit 21 does not receive the third measurement information in step S125, the process proceeds to step S134, and the control unit 21 has a predetermined time for continuously irradiating the laser beam L3 from the third laser transmitting / receiving device 43. Judge whether or not the time has been reached. If the predetermined time has not been reached, the process returns to step S125.

  If the predetermined time has been reached, the process proceeds to step S135. In step S135, the control unit 21 transmits a signal for stopping the irradiation of the laser beam of the third laser transmission / reception device 43, and the third laser transmission / reception device 43 is transmitted. Stops the irradiation of the laser beam based on the received stop signal.

  In step S <b> 126, the control unit 21 transmits a stop signal to the third laser transmission / reception device 43. Then, the third laser transmitting / receiving apparatus 43 that has received the stop signal stops the irradiation of the laser light L3 and proceeds to the next step S127.

  In step S127, the control unit 21 is in a state where the first to third measurement information is recorded in the recording unit 23, and the acquisition of the measurement information is completed, and this flow ends.

  In addition, after the process of said step S131, step S133, and step S135, in step S136, this flow is complete | finished in the state which has not acquired 1st-3rd measurement information.

  When the measurement process of the measurement unit is completed, the process proceeds to step S106 illustrated in FIG. 8, and the control unit 21 determines whether or not the recording state of the first to third measurement information is normally processed in the recording unit 23. I do. That is, when the 1st-3rd measurement information is recorded on the recording part 23, it determines with a normal process, and progresses to the process of step S107. On the other hand, if any one of the first to third measurement information is missing from the recording unit 23, it is determined as an abnormal process and the process of the vehicle flow inspection is terminated.

  In step S <b> 107, the control unit 21 acquires weather information from the weather measurement unit 18 and records it in the recording unit 23.

  In step S108, the control unit 21 acquires the change amount α of the handle angle measured by the handle angle measuring device 60 through the portable terminal 10 and records it in the recording unit 23.

  In step S109, the control unit 21 calculates the approach angle θ of the vehicle 2 to be inspected at the second measurement position Q. That is, as described above, the control unit 21 functions as an approach angle calculation unit, and the vehicle under test 2 at the first measurement position Q of the vehicle under test 2 based on the first measurement information and the second measurement information. Is calculated and recorded in the recording unit 23.

  In step S110, as described above, the control unit 21 functions as a flow amount calculation unit, and the vehicle to be inspected at the third measurement position R of the vehicle 2 to be inspected based on the second measurement information and the third measurement information. 2 is calculated and recorded in the recording unit 23.

  In step S111, as described above, the control unit 21 functions as a speed calculation unit, and based on the second measurement information and the third measurement information, the second measurement position Q to the third measurement position of the vehicle 2 to be inspected. The speed of the inspected vehicle 2 in the section up to R is calculated and recorded in the recording unit 23.

  In step S112, the control unit 21 corrects the calculation result of the flow rate of the vehicle 2 to be inspected, if necessary, based on the calculated approach angle θ and the weather information received from the weather measurement unit 18, The final decision is made in association with the vehicle identification information received from the portable terminal 10. The control unit 21 functions as an acceptance / rejection determination unit, and compares the final determined vehicle flow amount with a comparison table to determine whether or not the vehicle flow amount is within an allowable value. If the vehicle flow amount is within the allowable value, the process proceeds to step S113 as acceptable, while if the vehicle flow amount is out of the allowable value, the process proceeds to step S116 described later as a failure.

  In step S113, the control unit 21 (pass / fail judgment means) compares the handle angle change amount read from the recording unit 23 with the comparison table, thereby determining whether the handle angle change amount is within the allowable value. An angle is determined, and if the change amount of the handle angle is within the allowable value, the process proceeds to step S114. If the change amount of the handle angle is not within the allowable value, the process is transferred to step S116.

  In step S114, the control unit 21 (pass / fail determination means) performs a comprehensive determination of inspection pass / fail based on the vehicle flow determination result and the steering angle determination result. If the comprehensive determination is acceptable, the process proceeds to step S115. If it is determined that the overall determination is unacceptable, the process proceeds to step S116.

  In step S115, the control part 21 transmits the determination result to the effect that it passed as mentioned above to the carrying terminal 10. The result of acceptance is displayed on the display unit 12 of the portable terminal 10.

  On the other hand, when the determination results in steps S112, S113, and S114 fail in step S116, the control unit 21 transmits to the portable terminal 10 that the determination results have failed. The display unit 12 of the portable terminal 10 displays that the determination result has failed, and the process proceeds to the next step S117.

  In step S117, the control unit 21 displays each pass / fail determination result on the display monitor unit 24 of the inspection processing device 20, and the date / time, time, vehicle identification number, vehicle speed in step S111, vehicle flow rate, and handle angle in step S108. The change amount and the weather information in step S107 are displayed and the main flow is terminated.

  Even if the steering angle determination in step S113 is unsuccessful, for example, if the change amount α of the steering wheel angle is an abnormal value, the steering wheel 5 is inadvertently touched during traveling. Since it can be determined that there is, the vehicle flow inspection can be performed again by returning to the starting point of the test course C.

  Further, for example, when the wind speed in the weather information is an abnormal value, it can be determined that the gust was blown on the test course C during traveling, so the vehicle flow inspection is performed again by returning to the start point of the test course C. You can also.

  In addition, when the comprehensive judgment fails, the weather information and the change in the steering wheel angle are normal values, so of course the test fails. For example, it may be caused by the difference in performance of each of the four wheels of the tire. It is also possible to return to the starting point of the test course C and perform the vehicle flow inspection again after performing the mounting rotation of the front, rear, left and right of the tire.

  Conventionally, in the vehicle flow inspection of the vehicle to be inspected, after the vehicle flow amount is measured by running the vehicle to be inspected on the test course and the vehicle flow amount fails in the pass / fail judgment, it is rejected. Even if the cause is caused by an external factor unrelated to the vehicle to be inspected such as weather conditions, it cannot be notified to the test driver of the vehicle to be inspected.

  In addition, as a problem when performing the conventional straight running performance test, when the test driver has released his hand from the steering wheel, the hand that should have been released by some kind of bounce and other parts of the test driver's body The amount of flow of the vehicle changes due to contact with the steering wheel, and the straight traveling performance may not be measured.

  However, according to the present embodiment, such a problem is solved, and whether the measurement result of the vehicle flow amount is a factor due to alignment, tires, left and right driving forces, etc. inherent to the inspected vehicle. It is possible to analyze instantaneously whether the test driver is caused by contact with the handle 5 or by weather information on the test course C, and the analysis result and the cause of failure are inspected. Since the test driver can also check through the portable terminal 10 in the vehicle 2, it is possible to perform an efficient and accurate vehicle flow pass / fail determination.

  By the way, the inspection processing device 20 is connected to the production management device 6 shown in FIG. 1, and the production management device 6 includes information associated with each vehicle 2 to be inspected, such as the type of tire, manufacturer, drive system, and the like. Information is recorded. That is, by associating the information of the production management device 6 with the information of the list shown in FIG. 7, it becomes possible to further analyze the factors and improve the quality control of the vehicle 2 to be inspected. Become.

  Although the processing of the amount of change in the handle angle obtained from the handle angle measuring device 60 is performed using the inspection processing device 20, a dedicated processing device may be provided in order to improve the processing speed. Good.

It is a lineblock diagram explaining the outline of the straight running performance inspection system of vehicles concerning this embodiment. (A) It is a perspective view which shows a handle | steering-wheel angle measuring device. (B) It is function explanatory drawing of a carrying terminal and a handle | steering-wheel angle measuring apparatus. (A) It is a front view which shows the state which attached the handle | steering-wheel angle measuring apparatus to the handle | steering_wheel in a vehicle. (B) It is a perspective view which shows the state which attached the handle | steering-wheel angle measuring apparatus to the handle | steering_wheel in a vehicle. (A) It is a block diagram which shows a portable terminal. (B) It is a block diagram which shows an inspection processing apparatus. It is explanatory drawing which shows the measurement state of a vehicle flow amount. It is explanatory drawing which shows the flow of the test | inspection by the rectilinear performance test system of this embodiment. It is an inspection result list displayed on the display monitor part of an inspection processing device. It is a flowchart which shows the process of a test | inspection processing apparatus. It is a flowchart which shows the subroutine of a process of the test | inspection processing apparatus of FIG.

Explanation of symbols

C test course P first measurement position Q second measurement position R third measurement position 1 straight-line performance inspection system 2 vehicle to be inspected 3 vehicle information sheet 4 vehicle code 5 handle 10 carrying terminal 18 meteorological measurement unit 19 meteorological communication device 20 inspection Processing device 40 Measuring unit 50 Instrument panel 60 Handle angle measuring device

Claims (4)

A vehicle straight running performance inspection system for running a vehicle on a test course and inspecting the straight running performance of the vehicle,
A portable terminal that can be brought into the inspected vehicle and reads vehicle identification information from a vehicle code in which the vehicle information of the inspected vehicle is recorded;
A weather measurement unit for measuring weather information in the test course on which the vehicle to be inspected travels;
A measuring unit that is installed on a straight road of the test course and measures a vehicle flow amount that indicates an approach angle of a traveling vehicle to be inspected and a traveling vehicle flowing left and right;
An inspection processing device installed outside the test course, wirelessly connected to the portable terminal so as to communicate with each other, and connected to each of the weather measurement unit and the measurement unit by wire or wirelessly,
With
The measuring unit is
First to third laser transmission / reception devices that are arranged at predetermined intervals along the straight path and emit laser beams toward the vehicle to be inspected traveling on the straight path to measure the distance to the vehicle. And a transmission device that transmits measurement information measured by each laser transmission / reception device to the inspection processing device,
The inspection processing apparatus includes:
An approach angle calculating means for calculating an approach angle of the vehicle to be inspected based on a measurement result by the first laser transmitting / receiving device and the second laser transmitting / receiving device;
A flow amount calculating means for calculating a flow amount measurement value of the vehicle to be inspected based on a measurement result by the second laser transmitting / receiving device and the third laser transmitting / receiving device;
Based on the calculation results by the approach angle calculation means and the flow amount calculation means and the weather information received from the weather measurement unit, the vehicle flow amount of the vehicle to be inspected is converted into vehicle identification information received from the carrying terminal. Vehicle flow amount determination means for final determination in association with the vehicle;
Pass / fail determination means for determining whether or not the inspection of the vehicle flow amount determined by the vehicle flow amount determination means is acceptable. The inspection processing apparatus includes a pass / fail result transmitting unit that transmits a determination result by the pass / fail determination unit to the portable terminal, and the portable terminal includes a display unit that displays the received determination result. The vehicle straight running performance inspection system according to claim 1. A handle angle measuring device that is attached to a handle of a vehicle to be inspected, measures a handle angle, can detect a change amount of the handle angle, and is wirelessly connected to the portable terminal;
The handle angle measuring device includes:
Sending the amount of change in the handle angle to the portable terminal,
The portable terminal transmits the amount of change in the handle angle received from the handle angle measuring device to the inspection processing device,
The inspection processing apparatus refers to the amount of change in the handle angle received from the portable terminal when determining whether the inspection is acceptable or not by the acceptance / rejection determination unit. Vehicle straight performance inspection system. The handle angle measuring device includes:
In a thin box-shaped casing that is attachable to the upper center position of the handle at the approximate center position of the handle,
A microcomputer unit comprising an acceleration sensor for detecting the handle angle, an A / D conversion unit for converting an analog signal detected by the acceleration sensor into a digital signal, a central processing unit, and a recording unit, and the digital signal as communication data 4. The vehicle straight-running performance inspection system according to claim 3, wherein a communication data conversion unit for conversion and a wireless communication unit for transmitting communication data to the portable terminal are housed.

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