JPH0117088B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring the weight of a vehicle on a road or the like.

Overloading a truck or the like not only impedes the drivability of the vehicle itself, but also causes traffic accidents or damage to the road surface. Therefore, the police, road corporation, etc. use measuring devices to check whether the vehicle is loaded below the legal loading amount or not to carry out enforcement or traffic regulations. Conventionally, this type of measurement has generally involved measuring the axle loads of each axle, adding them together, and displaying and printing them out. However, the measurement result obtained by simply adding up each axle load is expressed as the sum of the number of passengers on board, the specified empty weight of the vehicle, and the loaded weight. It had to be done. Furthermore, although what is originally required is whether or not there is overloading, and if so, to what extent, this also requires relying on complicated manual calculations. It was hot. On the other hand, for truck types such as trailer trucks, the load of the cargo is not directly expressed as the result of adding up each axle load, so when dealing with trailer trucks, the difficulty of calculation is doubled. It was hot.

Thus, delays in processing measurement results due to manual calculations make prompt enforcement and regulation impossible, leading to traffic congestion.

The present invention has been made to address the above-mentioned conventional problems, and its purpose is to not only measure the vehicle weight from the sum of each axle load, but also to
Various information about the vehicle to be measured, such as the number of axles, the equivalent number of occupants, vehicle weight, maximum load capacity, and whether the vehicle to be measured is a regular truck, or a semi-trailer, pole trailer, full trailer, etc. whose axle load is different from that of a regular truck. To extremely quickly and automatically obtain the loaded weight, excess loaded amount, and excess rate of a vehicle necessary for traffic enforcement and traffic regulation by taking in the type of towing vehicle. The object of the present invention is to provide a vehicle weight measuring device that can perform the following functions.

In order to achieve the above object, the first invention (the invention set forth in claim 1) includes a detection unit that is arranged to be able to measure the axle load for each axle of a vehicle and outputs the axle load as an electrical signal. , an amplifier that amplifies the output from this detection section, an A/D converter that converts the analog signal from this amplifier into a digital signal, an axle number setting device that manually inputs the number of axes of the vehicle to be measured, A occupancy setting device that manually inputs the actual number of occupants in the vehicle, and a manual input device for specifying the type of vehicle to be measured if it is a towing vehicle such as a semi-trailer, pole trailer, or full trailer that has a different load on the axle than a regular truck. A vehicle type setting device for inputting, a maximum loading capacity setting device for manually inputting the maximum loading capacity of the vehicle to be measured, a vehicle weight setting device for manually inputting the specified empty weight of the vehicle to be measured, and settings for each of the above setting devices. a keyboard consisting of 0 to 9, which is used to input setting values, respectively;
An adder in an arithmetic processor that calculates the measured total weight of the vehicle by adding the signals from the A/D converter for the number of axes set by the axle number setting device; When the type signal is not output from the vehicle type setting device, the actual occupant conversion value set by the occupant setting device and the empty vehicle weight set by the vehicle weight setting device are calculated from the measured total weight, which is the output signal of the adder. the maximum loading amount set by the maximum loading amount setting device is calculated by subtracting the maximum loading amount set by the maximum loading amount setting device from this loading weight, and the excess loading amount is divided by the maximum loading amount; The excess rate is calculated by multiplying this by 100. On the other hand, if the vehicle type setting device outputs a vehicle type signal indicating either a semi-trailer, a pole trailer, or a full trailer, the adder and the occupant setting device , receives the output signals from the maximum load setting device and the vehicle weight setting device, and calculates the load weight, excess load amount, and excess rate in accordance with the case of the ordinary truck using a predetermined calculation formula according to the vehicle type signal. A processor that performs calculations, receives a signal from the processor, and converts the signal into the measured total weight,
It is equipped with display means for converting and displaying the loaded weight, excess loaded amount, and excess rate, and is configured to automatically obtain the total weight, loaded weight, excess loaded amount, and excess rate of various vehicles to be measured. , the second invention (the invention set forth in claim 2) is configured such that a detection unit for converting the axle load into an electric signal and outputting it for each axle of the vehicle can be disposed on the road, An axle number setting device that manually inputs the number of axles of the vehicle to be measured, an occupant setting device that manually inputs the actual number of passengers in the vehicle to be measured, and a semi-trailer or pole where the vehicle to be measured has a different loading pattern on the axles than a regular truck. A vehicle type setting device for manually inputting the type of towing vehicle such as a trailer or full trailer, a maximum load setting device for manually inputting the maximum loading capacity of the vehicle to be measured, and a manual setting for the specified empty weight of the vehicle to be measured. A setter group consisting of a vehicle weight setter for inputting data, a keyboard consisting of 0 to 9 used to input respective setting values when setting these setter groups, and an input state in the setter group are displayed. a display device as a first processing section, an adder in an arithmetic processor that sequentially adds the axle loads from the detection section for the number of axes set by the axle number setting device, and a signal from the setting device group; In response, a calculation processor calculates the loaded weight, excess load, and excess rate of the vehicle to be measured using calculation formulas according to the vehicle type signal of the vehicle type setting device, and records the calculation processing results by this calculation processor. A recording unit for processing is set as a second processing unit separate from the first processing unit, and these detection units, the first processing unit, and the second processing unit are connected to each other through a signal transmission means so that signals can be exchanged. The first processing section is configured so that it can be carried and operated by a guiding person who guides the vehicle to be measured onto the detection section.

Hereinafter, the present invention will be explained in detail based on the drawings. 1
In the detection section, a pair of detectors 1a and 1b are arranged on one side of the road R, separated by the width of a wheel. Each detector 1a, 1b is provided with, for example, six load cells, and a guide plate 1c is provided on the entrance and exit sides.
will be installed. The axle load signal for each axle from the detection unit 1 is input to an amplifier 2 having a conditioner function. This amplifier 2 includes a bridge power supply for converting the resistance change caused by the load cell into voltage, an initial balance adjuster for balancing the bridge, and a resistor inserted in parallel with the bridge to calculate the amount of strain and the displayed value. It includes a calibration circuit for comparative calibration and a main body of the width increasing part. Also, the signal from amplifier 2 is A/
The signal is converted into a digital signal by a D converter 3, and is input to an arithmetic processor 5 via an interface 4. This arithmetic processor 5 has
Two types of storage units 6, RAM and ROM, are provided. Reference numeral 7 denotes a time setting device, which is configured to give signals indicating the date and time of the current measurement to a recording section and a display section, which will be described later, via an interface 8. Reference numeral 9 denotes a recording controller, which outputs various data and arithmetic processing results from the arithmetic processor 5 to a recording unit 10 such as a printer based on commands from the arithmetic processor 5. On the other hand, each of the above-mentioned operating parts except for the detection part 1 is referred to as a second processing part Pb.

Reference numeral 11 denotes a correction switch, which is used to correct operation input. Reference numeral 12 denotes a preparation switch, which is used as a switch for starting zero point adjustment on the display section. Reference numeral 13 denotes a measurement switch, which is used for timing for storing measurement data into the recording section 10. In addition, there is also an axle number setting device 14 for manually inputting the number of axles of the vehicle to be measured, actual occupants, maximum load capacity, specified empty weight, and type based on the load condition on the vehicle's axles, an actual occupant setting device 15, and a maximum load. A weight setting device 16, a vehicle weight setting device 17, and a vehicle type setting device 18 are provided, and are outputted via an interface 19. Here, car model setting device 18
are a semi-trailer switch 18a, a pole trailer switch 18b, and a full trailer switch 1.
8c, and when these switches are not operated, the track is processed by the arithmetic processor 5 as a normal track. 20 is the setting device 7,1
It is output via the interface 21 using a keyboard consisting of 0 to 9 used when setting 4, 15, 16, 17, and 18. The above various settings that are entered manually are performed by a series of operations on various setting devices and a keyboard, but instead of the keyboard, resistors, capacitors, etc. can be used to set the input as a continuously variable amount. Good too. 22 is a display controller that controls data display on a display section 23 consisting of a 7-segment LED or the like. On the other hand, the above-mentioned switch, setting device, keyboard, and display section constitute the first processing section Pa.

In the device configured as described above, when performing a measurement, the detection section 1 is first placed on a predetermined road, and the detection section 1 is connected to the main body of the measuring device by a cable, and a power source is secured. Next, a power switch (not shown) is turned on, and each operating section is checked to see if it operates normally, or preparations such as calibration are made.

When this is completed, guide Ma guides the vehicle T to be measured, temporarily stops it just in front of the detection unit 1, and borrows the vehicle inspection certificate from the occupant of the vehicle. At this time, the operation panel
The lamp of the "number of axles" switch on the CP (Figure 3) is lit, so after confirming this, set the number of axles of the vehicle by tapping on the keyboard 20. If this setting is done correctly, the "maximum load" switch lamp will light up based on the order command from the processor 5. After confirming this, set the maximum load value written on the vehicle inspection certificate. Similar settings are made via the keyboard 20. Next, after confirming that the "vehicle weight" switch lamp is lit, the vehicle and weight values of the vehicle inspection certificate are set in the same manner. Furthermore, the "actual number of passengers" is also set. If the vehicle is other than a regular truck, a slightly different setting operation is performed, which will be described later. Furthermore, during setting, the set value is displayed on the display section 23, so if it is determined that the setting is a mistake, the "correction" switch 11 is pressed and the setting is reset. When such settings are completed, the lamp of the "preparation" switch 12 is blinking by the arithmetic processor 5, so the "preparation" switch 12 is pressed to turn off the lamp. After confirming that the lamp of the "measurement" switch 13 is on, the guide Ma guides the vehicle T so that its first axis is above the detection section 1. As a result, the first axis weight signal from the detection section 1 is taken into the arithmetic processor 5 and displayed on the display section 23 via the display controller 22. When the dispersion of the displayed values becomes small, when the "measurement" switch 13 is pressed, the displayed values are stored in the storage unit 6 via the arithmetic processor 5.
Thereafter, the above measurement operation is repeated for the number of axes of the vehicle T in the same manner. When the measurement is completed for all the set numbers of axes, the axle loads stored in the storage unit 6 are added by the number of axes in the adder in the arithmetic processor 5, and the resulting measured total weight is stored in the recording controller 9.
Weight measurement card Ca (fourth
(Fig.) is printed and recorded. Also, first setter 7, 1
Since the setting signals from 4, 15, 16, and 17 are stored in the storage unit 6, the arithmetic processor 5 reads them out and prints them out as they are to the recording unit 10, and also uses the arithmetic unit to perform the following processing. Perform calculations and print out the results on measurement card Ca.

The items recorded on the card Ca regarding the ordinary truck shown in FIG. 5a, which has an integrated chassis, show the following meanings and results of arithmetic processing.

(A) Measured gross weight: The sum of each measured axle load (B) Actual passenger conversion value: Value obtained by multiplying the number of passengers by 55 kg (C) Vehicle weight: Empty vehicle weight (value stated on the vehicle inspection certificate) (D) Allowable own weight : (B) + (C) (E) Load capacity: Loaded weight (A) - (D) (F) Maximum load capacity: Allowable load capacity (value stated on vehicle inspection certificate) (G) Excess load capacity: Overloading amount (E) - (F) (H) Exceeding rate: Overloading rate (G) / (F) x 100% On the other hand, the situation is different for towing vehicles with different load conditions on the axle. First, visually check the type of the vehicle to be measured that was guided at the beginning of the setting, and set the vehicle type setting device 1.
8 switches 18a, 18b, 18c
Press. After that, the setting operations after setting the number of axes as described above are performed. When the setting signal from the vehicle type setting device 18 is input to the arithmetic processor 5, after all measurements are completed, the arithmetic processor 5 performs arithmetic processing according to a program different from that for ordinary trucks. Also, for towing vehicles, there are two or more vehicle inspection certificates, and there is a lot of data to be set. Therefore, these data settings are also performed.

For the semi-trailer in Figure 5b: (A) Total measured weight: Total measured weight of the tractor (A')
[Sum of each measured axle load] + Total measured weight of trailer (A″) [Sum of each measured axle load] (D) Allowable own weight: Value converted to actual occupants (B) + Tractor vehicle weight (C) [Vehicle The calculation differs from the calculation for a regular truck in two points: [value recorded on the vehicle inspection certificate] + vehicle weight of the trailer (C') [value recorded on the vehicle inspection certificate].

Also, for the pole trailer in Figure 5c, the semi-trailer and (F) Maximum load capacity: Maximum load capacity of the tractor (F')
Different calculations are performed in terms of [value stated in the vehicle inspection certificate] + maximum trailer loading capacity (F'') [value recorded in the vehicle inspection certificate].

In the case of the full trailer shown in FIG. 5d, separate results are printed out by separate calculations for the tractor section and the trailer section, in accordance with the calculation method used in the case of a normal truck.

In this way, even for a towing vehicle other than a regular truck, the loaded weight, excess loaded amount, and excess rate can be calculated, displayed, and recorded.

In the above example, when the record of the card Ca prints the item, for example, the item of total measured weight, that value is displayed on the display section 23, and the items to be printed are sequentially displayed. The display value on the display unit 23 is also changed every time.

On the other hand, as can be inferred from the above explanation, the input data includes the value stated on the vehicle inspection certificate,
It would not be possible for the driver Ma to read this value out loud and convey it to the recorder Mb on road R, or to cross in front of the vehicle T and hand over the vehicle inspection certificate to the recorder Mb (which would be dangerous). Unable to process.

Therefore, as shown in Figure 1, if the first processing section Pa and the second processing section Pb are separated and boxed separately, the driver Ma can perform the settings at the location where the vehicle inspection certificate is borrowed. , processing can be carried out smoothly.

Here, since the display section 23 is essential at the time of setting, it is necessary to set it as the first processing section. Furthermore, in this case, the display section 23 does not necessarily have to display the contents stored in the storage section 6 as well.

Further, the processing units Pa and Pb may be connected by a cable or by a remote control method.

As described in detail above, according to the first invention, the function is not limited to a simple addition function of axle load as in the conventional device, but also includes a number of axles setting device, an occupant setting device, a vehicle type setting device, etc.
Based on the output signals of the maximum load setting device, vehicle weight (empty weight) setting device, and these various setting devices, the loaded weight, excess loading amount, and excess rate of the vehicle to be measured are automatically calculated by the processor. Because of this structure, the accurate loaded weight, excess loaded amount, and excess rate required for traffic enforcement and traffic regulations can be obtained extremely quickly with simple operations, especially for various types of towing vehicles that previously required complicated calculations. It is possible to provide a vehicle weight measuring device that enables speedy enforcement and regulation, and that can contribute to eliminating traffic congestion that occurs when conventional devices are used.

Further, according to the second invention, the first processing section, which has the same basic configuration as the first invention, and includes various setting devices, a keyboard, and a display section, is replaced by an arithmetic processor, The above-mentioned first processing section is constructed as a separate unit independent from the second processing section, which includes a recording section, and is configured so that it can be carried and operated by a vehicle guide.
In addition to the effects of the invention described above, it is possible to provide a vehicle weight measuring device that can reliably improve processing efficiency and ensure safety.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of the device of the present invention;
Figure 2 is a schematic diagram showing the measurement situation on the road, Figure 3 is a front view of the operation panel, Figure 4 is an example of a weight measurement card, and Figures 5 a to d are overviews of different types of vehicles. It is a diagram. DESCRIPTION OF SYMBOLS 1...Detection part, 2...Amplifier, 3...A/D converter, 5...Arithmetic processor, 6...Storage part, 10...
...Recording section, 14... Axis number setting device, 15... Occupancy setting device, 16... Maximum load setting device, 17...
Vehicle weight setting device, 18... Vehicle type setting device, 20...
Keyboard, 23...display section, Pa...first processing section, Pb...second processing section.

Claims (1)

[Claims] 1. A detection section that is arranged to be able to measure the axle load on each axle of a vehicle and outputs the axle load as an electrical signal, an amplifier that amplifies the output from this detection section, and an analog signal from this amplifier. An A/D converter that uses digital signals as a digital signal, an axle number setting device that manually inputs the number of axles of the vehicle to be measured, an occupant setting device that manually inputs the actual number of passengers in the vehicle to be measured, and If the towing vehicle is a semi-trailer, pole trailer, full trailer, etc., which has a different loading pattern on the axle than a normal truck, there is a vehicle type setting device that manually inputs the type and the maximum load capacity of the vehicle to be measured. a maximum load setting device, a vehicle weight setting device for manually inputting the specified empty weight of the vehicle to be measured, and a keyboard consisting of 0 to 9 used for inputting setting values when setting each of the setting devices; An adder in an arithmetic processor that calculates the measured total weight of the vehicle by adding the signals from the A/D converter for the number of axes set by the axle number setting device; When the type signal is not output from the vehicle type setting device, the actual occupant conversion value set by the occupant setting device and the empty vehicle weight set by the vehicle weight setting device are calculated from the measured total weight, which is the output signal of the adder. the maximum loading amount set by the maximum loading amount setting device is calculated by subtracting the maximum loading amount set by the maximum loading amount setting device from this loading weight, and the excess loading amount is divided by the maximum loading amount; Multiply this by 100 to calculate the excess amount, and on the other hand, if the vehicle type setting device outputs a vehicle type signal indicating either a semi-trailer, a pole trailer, or a full trailer,
The output signals from the adder, the occupant setting device, the maximum load setting device, and the vehicle weight setting device are received, and loading is performed according to a predetermined calculation formula according to the vehicle type signal in accordance with the case of the ordinary truck. an arithmetic processor that calculates the weight, excess load, and excess rate; and display means that receives a signal from the arithmetic processor, converts it into the measured total weight, loaded weight, excess load, and excess rate, and displays the result. 1. A vehicle weight measuring device comprising: a vehicle weight measuring device configured to automatically obtain the total weight, loaded weight, excess loaded amount, and excess rate of various vehicles to be measured. 2. An axle number setting device configured so that a detection unit that converts and outputs the axle load into an electric signal for each axle of a vehicle can be installed on the road, and manually inputs the number of axles of the vehicle to be measured, and an object to be measured. Occupant setting device for manually inputting the actual occupants of the vehicle.If the vehicle to be measured is a towing vehicle such as a semi-trailer, pole trailer, or full trailer that has a different load on the axle than a regular truck, the type can be input manually. A setting device group consisting of a vehicle type setting device for manually inputting the maximum loading capacity of the vehicle to be measured, a maximum loading capacity setting device for manually inputting the maximum loading capacity of the vehicle to be measured, and a vehicle weight setting device for manually inputting the specified empty weight of the vehicle to be measured, and a group of these setting devices. 0 used to input each setting value when setting
A keyboard consisting of 9 to 9 and a display that displays the input status in the setter group are used as a first processing section, and the axle loads from the detection section are sequentially added by the number of axes set by the axle number setting device. Receiving the signals from the adder in the arithmetic processor and the setter group, calculates the loaded weight, excess load, and excess rate of the vehicle to be measured using an arithmetic formula according to the car type signal of the car type setter. An arithmetic processing unit for processing and a recording unit for recording the arithmetic processing results by this arithmetic processing unit are used as a second processing unit separate from the first processing unit, and these detection units, the first processing unit, and the second processing unit The first processing section is connected to the first processing section through a signal transmission means so as to be able to send and receive signals, and the first processing section is configured so that it can be carried and operated by a guide who guides the vehicle to be measured onto the detection section. A vehicle weight measuring device characterized by: