KR101237755B1 - Management system for calibrating weigher of axle using of wire/wireless network - Google Patents

Abstract

PURPOSE: A remote error correction management system of an axle weighing apparatus using wire and wireless network is provided to perform an error correction task of the axle weighing apparatus without an essential field operator through a main server connected to wire and wireless network, thereby reducing costs for operator dispatch and manpower. CONSTITUTION: A remote error correction management system of an axle weighing apparatus using wire and wireless network comprises an axle weighing apparatus(1) and a main server(2). The axle weighing apparatus comprises a sensor unit(11), a correction unit(12), a first communication unit(13), and a first control unit(14). The sensor unit comprises a speed sensor(111) measuring the speed of a measurement target vehicle and a weight sensor(112) measuring the weight of the measurement target vehicle. [Reference numerals] (11) Sensor unit; (111) Speed sensor; (112) Weight sensor; (12) Correction unit; (13) First communication unit; (14) First control unit; (141) Measuring signal generating unit; (143) Correction value generating unit; (21) Second communication unit; (22) Second control unit; (221) Correction signal generating unit; (23) Database

Description

Remote Error Correction Management System for Cranes Using Wired / Wireless Network {MANAGEMENT SYSTEM FOR CALIBRATING WEIGHER OF AXLE USING OF WIRE / WIRELESS NETWORK}

The present invention relates to a remote error correction management system of a shaft accumulator, and in detail, to construct a main server storing the information on the error correction of the shaft accumulator and to connect the accumulators installed in each office with the main server through a wired or wireless network. Accordingly, the present invention relates to a remote error correction management system for a weight lifter using a wired / wireless network in which initial setup and correction work of the weight lifter is performed remotely and at the same time, a total weight lifter management is performed.

A accumulator is a device that measures the weight of a pair of wheels on the floor, and is generally installed in the access road of the highway and used to determine the overload by measuring the weight of the truck. Such an accumulator measures the weight using an electrical sensor, and in the case of a vehicle having a certain weight, the precision of the sensor is required so that the weight can be measured at a constant weight even when the speed is variable.

However, errors occur due to physical causes such as temperature and humidity, and electrical variation due to secular variation of the sensor. Therefore, calibration and calibration operations of the accumulators are generally performed at a monthly interval for this purpose.

In the existing method, it is necessary to carry out weighing one truck and driver, and operator and traffic controller who controls traffic, and it is usually short to check and calibrate the crane installed in one toll gate. It takes 3 to 8 hours of work.

This is because it uses a real-time verification method that verifies the reference weight while varying the speed by 1km within the range of 1km to 30km.At this time, the average error value within 5% by several tests according to the speed weighting value for the weight is used. Since this is required, a test is required to repeat the entry of the van every time to verify the measured values.

Based on the work structure described above, it is a reality that a lot of budget and manpower is incurred in considering the work time and quantity required for the total number of toll gates in Korea (240 places; based on the highway construction data). Considering the human and physical costs of cause analysis and repair work, it is understood that the current equipment management is not efficiently performed.

The present invention was created to solve the above problems, an object of the present invention is to remotely perform the error correction operation of the accumulator device located in each office by connecting the accumulator device with the main server on the remote through the wired or wireless network. In addition, it is to provide a remote error correction management system for a weight lifter using wired and wireless networks that can perform a comprehensive management and monitoring role through inspection, restoration and setting up data analysis.

In order to achieve the above object, the present invention is a remote error correction management system of a weight balancer that performs the error correction of the weight balancer device remotely through the main server, a speed sensor and a measurement target vehicle for measuring the speed of the vehicle to be measured A sensor unit including a weight sensor for measuring the weight from the sensor, a correction unit correcting the output value by subtracting a predetermined correction value to the output value of the weight sensor, a first communication unit performing communication through a wired / wireless network, and the sensor The control unit, the correction unit and the first communication unit controls the measurement signal generation unit for generating and outputting a measurement signal for the speed and voltage values obtained through the sensor unit and generates a correction value according to the input correction signal to the correction unit A condenser device comprising a first control unit including an input correction value generation unit; A second communication unit communicating with the first communication unit via a wired / wireless network, a database storing reference data of an output value of the weight sensor according to the speed of the vehicle to be measured, and controlling the second communication unit to control the first communication unit; A main server comprising a second control unit including a correction signal generation unit configured to read and compare the measurement signal transmitted from the corresponding reference data from the database and generate and output a correction signal for a difference value; And a control unit.

At this time, the database further includes the operation data for the error accumulator operation order, the second control unit further comprises a job signal generation unit for generating a job signal for the job data and outputs through the second communication unit, The first control unit further includes a progress signal generation unit configured to analyze the work signal received through the first communication unit to generate a progress signal in time order and output the output signal through the first communication unit, and proceed through the first communication unit. A third control unit for receiving a signal, a control signal generation unit for generating and outputting a control signal of the vehicle to be measured according to the progress signal, and a third control unit for controlling the third communication unit, and displaying the control signal to an operator. A terminal device consisting of a display unit; It may be made to include more.

The accumulator further includes an auxiliary memory unit for storing a speed measured from a vehicle to be measured and a correction signal output from the main server, and the correction value generation unit according to the correction signal stored in the auxiliary memory unit. And a main memory unit configured to store a measurement signal outputted from the accumulator device and a correction signal generated by the correction signal generator, and configured to input the correction unit to the correction unit. The controller may be configured to generate reference data through the measurement signal and the correction signal stored in the main memory unit.

In addition, the sensor unit further comprises a temperature sensor for measuring the temperature and humidity sensor for measuring the humidity, the first control unit generates a temperature and humidity signal for the measured temperature and humidity to generate a temperature and humidity signal output through the first communication unit In addition, the reference data of the database may be configured to further include the output value change data of the weight sensor to which the change in temperature and humidity is applied.

The wired / wireless network is preferably selected from the Internet, an intranet, a CDMA network, and a TRS network.

The present invention takes three or more workers and a long time for the error correction work of the heavy lifting device, and remarkably improves the existing cumbersome work method according to the frequent movement of the workers, without the need for the traveling work and the necessary number of necessary corrections. The advantage is that work is done. Specifically, since the work is performed through the main server connected to the wired / wireless network without the on-site operator required for the error correction work of the existing shaft lifter device, it is possible to reduce the cost and manpower of dispatching the operator and to perform accurate and efficient work. .

In addition, by connecting a large number of gearboxes installed in the tollgate offices across the country to the main server through a wired or wireless network such as the Internet or intranet, it is possible to perform a quick recovery by performing comprehensive diagnosis and recovery function remotely. In addition, it is possible to effectively manage the livestock accumulators installed in a number of establishments through data analysis and setting of the base value estimation accordingly.

1 is a conceptual diagram of a remote error correction management system of a condenser using a wired and wireless network of the present invention;
2 is a reference diagram showing the concept of the reference data and the measurement signal of the present invention;
3 is a block diagram showing the configuration of a remote error correction management system of a accumulator using a wired or wireless network according to a first embodiment of the present invention;
Figure 4 is a block diagram showing the configuration of a remote error correction management system of a condenser using a wired or wireless network according to a second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the remote error correction management system of the accumulator using the wired and wireless network of the present invention.

1 is a conceptual diagram of a remote error correction management system of a condenser using a wired and wireless network of the present invention, Figure 3 is a block diagram showing the configuration of a remote error correction management system of a condenser using a wired and wireless network according to a first embodiment of the present invention to be.

The present invention is applied to the existing weight lifter device and performs the error correction operation occurring in the weight sensor of the weight lifter device through the main server of the remote location, the basic configuration is the same as the existing weight lifter device.

First, a sensor unit 11 including a speed sensor 111 and a weight sensor 112 for measuring the speed and weight of a vehicle to be weighed is provided.

In general, the weight lifter is mainly installed in a toll gate of a highway to determine whether or not the cargo vehicle enters the highway, and when the freight vehicle passes through the sensor unit 11, the weight is measured together with the speed of the freight vehicle. Measure

At this time, the weight sensor 112 converts the detected weight into a voltage and outputs the weight. Since the weight measurement operation is performed while the freight vehicle moves at a predetermined speed, the speed of the vehicle to be measured is measured by the weight sensor 112. Affects the output value, the weight is calculated through the voltage value output at the corresponding speed along with the speed measurement of the freight vehicle passing through the sensor unit (11).

In this case, assuming that the sum of the weight of the cargo vehicle and the loaded cargo is 10 tons, the value of 10 tons should be calculated in the same way even if the speed of the cargo vehicle changes. However, most of the gearboxes composed of electronic systems generate electrical fluctuations of each electronic device due to environmental factors, such as temperature, humidity, and years of use of mechanisms, and noise, electromagnetic waves, and magnetic characteristics from outside. As a result, periodic error correction is required.

In the present invention, at least one concentrator device (1) installed at a designated measurement point and a main server (2) located at a remote location and managing the concentrator device (1) is provided, and the concentrator device (1) and the main The server 2 is connected via a wired or wireless network. In this case, the wired / wireless network may be an easily accessible internet or intranet network, or may use a CDMA or TRS network or other private network using a dedicated modem.

First, referring to the accumulator device according to the first embodiment of the present invention, the accumulator device 1 includes a sensor unit 11, a correction unit 12, a first communication unit 13, a first control unit 14; It is made to include.

The sensor unit 11 is a speed sensor 111 for measuring the speed of the vehicle (hereinafter referred to as "measurement vehicle") prepared for the error correction operation specifically the speed passing through the sensor unit 11 for weight measurement And, the weight sensor 112 for measuring the weight of the vehicle moving at a predetermined speed.

The vehicle to be measured is a reference vehicle normally used for error correction or calibration work of the heavy lifting device 1, and the exact actual weight of the vehicle to be measured is calculated in advance, and the vehicle to be measured is designated for error correction work. The speed and the weight are measured while passing through the sensor unit 11 at a speed. In this case, the weight sensor 112 converts the weight detected from the vehicle under measurement into a voltage value and outputs the converted voltage.

The designated speed is the speed point for obtaining the output value of the weight sensor 112 for error correction. Usually, 0 km / Hr, 1 km / Hr, 5 km / Hr, 10 km / Hr, 15 km / Hr, and 20 km / Hr, 25 km / Hr, 30 km / Hr, and then calculate other values.

The correction unit 12 performs a function of correcting an output value by adding or subtracting a correction value to an output value output from the weight sensor 112. Since the output value becomes a voltage value, the correction value is in the form of a predetermined voltage value. Has In this case, the correction value in the form of a predetermined voltage value means an error value calculated through an error correction operation, which will be described in detail later.

Since the accumulator device 1 of the present invention is connected to the main server 2 through a wired / wireless network as shown in FIG. 1, the first communication unit 13 performs communication through a wired / wireless network. The wired / wireless network may be the Internet or an intranet network, a CDMA or WCDMA network, a TSR or other private communication network, and the first communication unit 13 may be applied with a modem type suitable for a designated communication network.

The first controller 14 controls the sensor unit 11, the correction unit 12, and the first communication unit 13, and includes a measurement signal generation unit 141 and a correction value generation unit 143. The measurement signal generation unit 141 generates a measurement signal converted to be transmitted through a communication network including information on the speed and weight obtained through the sensor unit 11 and through the first communication unit 13 Send to the main server (2) connected to the wired and wireless network. That is, the information about the speed and weight collected through the sensor unit is an analog signal, and since the process of generating the correction signal in the main server 2 is performed through a digital circuit in consideration of accuracy real time signal processing, the analog signal is measured. The signal generation unit 141 converts the measurement signal into a digital signal.

The correction value generator 143 generates a correction value and inputs it to the correction unit 12. The correction value is generated by processing a correction signal generated and transmitted by the main server 2, which will be described later. At this time, the correction signal is a digital signal and the correction value is an analog signal which is a voltage value. That is, the measurement signal generator 141 performs an analog-digital conversion function, and the correction value generator 143 performs a digital-analog conversion function.

Looking at the configuration of the main server according to the first embodiment of the present invention, the main server comprises a second communication unit 21, the second control unit 22 and the database 23.

The main server (2) is installed in a place designated by the administrator to manage the load balancer device (1) connected through a wired or wireless network, in the past, the operator directly to the site during the error correction work of the load balancer device Although moved and operated, in the present invention, the main server 2 acts as an existing operator.

The second communication unit 21 is connected through a wired or wireless network to perform communication. In particular, the second communication unit 21 communicates with the first communication unit 13, and thus is configured in the same form as the first communication unit 13.

The database 23 stores and builds reference data about the vehicle to be measured and the weight sensor 112. The reference data is data calculated by calculation or laboratory test of an output value output from the weight sensor 112 according to the speed of the vehicle to be measured.

2 is a reference diagram illustrating the concept of the reference data and the measurement signal of the present invention. As described in the previous part, since the voltage value output through the weight sensor 112 has an error value, the measurement signal also includes an error value. to be. However, since the reference data is data about an ideal output value of the weight sensor that does not include an error value, the difference between the measured signal and the reference data becomes an error value, and the adjustment unit corrects the output value of the weight sensor by the error value. Will be.

To this end, the second controller 22 includes a correction signal generator 221. The correction signal generation unit 221 receives a measurement signal output from the first control unit 14 and transmitted through the first communication unit 13 and reads reference data corresponding thereto from the database 23, and the measurement signal Comparing with the reference data to generate a correction signal for the difference value. That is, as described above, the correction signal is a difference value between the measurement signal according to the actual measurement value and the reference data according to the design and corresponds to the error value of the weight sensor, and finally the correction value is calculated. The second controller 22 transmits the correction signal generated by controlling the second communication unit 21 to the accumulator 1 through the second communication unit 21.

Thereafter, the correction value generation unit 143 of the first control unit 14 converts the correction signal transmitted through the second control unit 22 into a correction value in the form of a predetermined voltage value and inputs it to the correction unit 12. The correction unit 12 corrects the output value by reflecting the input correction value to the weight sensor 112 to perform an error correction operation.

Figure 4 is a block diagram showing the configuration of a remote error correction management system of a condenser using a wired or wireless network according to a second embodiment of the present invention.

In the second embodiment of the present invention, the error correction operation of the accumulator device is specifically configured to be performed remotely under the control of the main server 2. Since the basic concept of the second embodiment is the same as that of the first embodiment, the same components will be described with the same reference numerals, and descriptions of the same functions as those of the first embodiment will be omitted.

As shown in Fig. 4, the configuration of the terminal apparatus 3 is added in the second embodiment. The terminal device (3) is located at the site where the weight lifting device (1) is installed to play a role of controlling the measurement target vehicle in accordance with the error correction work progress, installed in a position that can be checked by the driver of the external measurement target vehicle It may be, but is preferably installed inside the vehicle to be measured.

In the second embodiment of the present invention, the database 23 of the main server 2 further includes the operation data for the accumulator error correction operation sequence. The work data is an order of error correction work of a condenser which is generally performed, and in particular, includes detailed information to be performed in the field according to each order. For example, in the same operation as passing the sensor unit 11 by accurately adjusting the speed of the measurement target vehicle, the speed of the measurement target vehicle is added or subtracted so as to pass the sensor unit 11 several times.

The second control unit 22 reads the work data, generates a work signal for the work data, and transmits the work signal generator 222 to perform the function of transmitting the accumulator device 1 through the second communication unit 21. Will contain more

The first controller 14 further includes a progress signal generator 144 for processing the work signal. The progress signal generation unit 144 receives and processes the work signal through the first communication unit 13, generates a progress signal in time order, and transmits the progress signal through the first communication unit 14. That is, since the operation signal is information on the entire order and procedure of the error correction operation, the progress signal generation unit 144 divides it into respective steps, and sequentially generates and transmits the progress signal according to the error correction operation. For example, assuming that the error correction operation varies the speed of the vehicle to be measured in three steps and the weight is measured, the work signal includes the entire process of converting the speed in three steps, but generates the progress signal. The unit 144 separates all three stages into respective stages, and sequentially generates and transmits a progress signal by one stage to control the progress of each stage.

The terminal device 3 includes a third communication unit 31, a third control unit 32, and a display unit 33. In this case, since the terminal device 3 is located near the vehicle decay device 1 or inside the vehicle to be measured, the third communication unit 31 communicates with the first communication unit 13 by using short-range communication to perform a progress signal. Receive In particular, when the terminal device 3 is installed inside the vehicle to be measured, the first communication unit 14 and the third communication unit 31 communicate with each other by a wireless communication method. There are various wireless communication methods for this purpose, but can be implemented using widely used Wi-fi or Bluetooth.

The third control unit 32 includes a control signal generation unit 321 which receives the progress signal through the third communication unit 31 and processes it. The control signal generation unit 321 generates a control signal for outputting through the display unit 33 so that the driver can check the received progress signal.

At this time, the control signal will typically be to indicate the speed of entry of the vehicle, the display unit 33 outputs the control signal to the driver of the measurement target vehicle to show. The display unit 33 may be implemented through an LCD or LED monitor device, and an error correction operation is performed according to a control signal output to the display unit 33.

If it is assumed that the error correction operation is performed at the speed of the vehicle to be measured 5 km / Hr, the work signal generation unit 222 of the second control unit 22 reads the work data for the entire work procedure from the database 23. The work signal is generated and transmitted to the accumulator 1 through the second communication unit 21. Thereafter, the progress signal generation unit 144 of the first control unit 14 processes the received work signal, sequentially generates the progress signal according to the work order, and transmits the progress signal to the terminal device 3 through the first communication unit 14. . The control signal generation unit 321 of the third control unit 32 outputs a control signal "enter 5km / Hr" according to the received progress signal, and the display unit 33 displays this to the operator. Accordingly, the vehicle to be measured passes through the sensor unit 11 at a speed of 5 km / Hr.

At this time, the auxiliary memory unit 15 is configured in the accumulator 1 to store the speed measured from the vehicle to be measured and the correction signal generated from the correction signal generator 221 of the second controller 22. It is desirable to. Even though communication with the main server 2 is lost due to a problem in the wired / wireless network through the speed and the correction signal of the measurement target vehicle stored in the auxiliary memory unit 15, the correction signal stored in the auxiliary memory unit 15 is temporarily used. Not only can the error correction work be performed, but it can also be used as data to analyze the error pattern generated in the derailleur device. That is, the speed of the vehicle to be measured and the correction signal thereof are accumulated and stored in the auxiliary memory unit 15, and the first control unit 14 according to the speed of the vehicle in the subsequent weighing operation is performed by the auxiliary memory unit 15. Read the correction signal according to the speed from the conversion to the voltage value to be transmitted to the correction unit 12 can be operated even if the derailleur device 1 does not always remain connected to the main server (2). In addition, harvesting speed and correction signal stored in the auxiliary memory unit 15 may be collected and used for cause analysis through an error value generation pattern.

In addition, a main memory 24 is also configured in the main server 2 to measure the measurement signal generated through the measurement signal generation unit 141 and the correction signal generated through the correction signal generation unit 221. It is preferable to accumulate and store. The measurement signal and the correction signal stored in the main memory unit 24 may be collected and used for cause analysis through an error value generation pattern, and the reference data of the database 23 may be corrected and supplemented based on this. Correction or supplementary work of the reference data is performed by the administrator of the main server 2 through the second control unit 22.

The main server 2 is configured to be connected to each of the accumulators 1 at a predetermined time by the administrator, or the accumulators 1 is configured by an event signal generated by the client system of the accumulators 1. It can be configured to be connected to the main server (2).

Since the change in temperature and humidity of the site where the accumulator device 1 is installed may also affect the electric fluctuations and cause an error value, the weight sensor 112 according to the temperature and humidity for more accurate error correction work. It is desirable to reflect the change in the output value.

To this end, the sensor unit 11 further includes a temperature sensor 113 and a humidity sensor 114 for measuring the current atmospheric temperature and humidity of the place where the measurement target vehicle is located. In addition, the first control unit 14 further includes a temperature and humidity signal generation unit 142 for generating a temperature and humidity signal for the temperature and humidity measured by the sensor unit 11 and transmitting it through the first communication unit 13. Like the measurement signal and the correction signal, the temperature and humidity signal is a digital signal, and the temperature and humidity, which are analog values, are converted into a temperature and humidity signal, which is a digital signal, through the temperature and humidity signal generator 142.

In addition, the reference data of the database 23 includes data of variation in the output value of the weight sensor 112 to which changes in temperature and humidity are applied. The output value variation data of the weight sensor to which the change in temperature and humidity is applied is also data accurately calculated by calculation or laboratory test, and the correction signal generator 221 is a temperature and humidity signal transmitted through the temperature and humidity signal generator 142. The measurement signal transmitted through the measurement signal generation unit 141 is compared with the reference data of the database 23, but the correction signal is generated by comparing with the reference data to which the change value according to the temperature and humidity data is applied.

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

1: gearbox 11: sensor 111: speed sensor
112: weight sensor
113: temperature sensor
114: humidity sensor
12: correction unit
13: First Communication Department
14: first control unit 141: measurement signal generation unit
142: temperature and humidity signal generation unit
143: correction value generator
144: progress signal generation unit
15: auxiliary memory
2: main server 21: the second communication unit
22: second control unit 221: correction signal generation unit
222: work signal generator
23: Database
24: main memory
3: terminal 31: third communication unit
32: third control unit 321: control signal generation unit
33: display unit

Claims (5)

In the remote error correction management system of the accumulator to perform the error correction of the accumulator device remotely through the main server,
A sensor 11 including a speed sensor 111 for measuring the speed of the vehicle to be measured and a weight sensor 112 for measuring the weight from the vehicle to be measured; A correction unit 12 for correcting an output value by adding and subtracting the first and second communication units 13 to communicate with each other through a wired or wireless network, the sensor unit 11, the correction unit 12 and the first communication unit 13. The control unit generates a measurement signal for the speed and voltage values acquired through the sensor unit 11 and outputs the correction signal according to the measurement signal generation unit 141 and the correction signal inputted through the first communication unit 13. A concentrator device (1) comprising a first control unit (14) including a correction value generation unit (143) generating and inputting the correction unit to the correction unit;
A second communication unit 21 communicating with the first communication unit 13 through a wired / wireless network, a database 23 storing reference data of an output value of the weight sensor 112 according to the speed of the vehicle to be measured; The second control unit 21 controls the second communication unit 21 and compares the measurement signal transmitted from the first control unit 14 with the reference data corresponding to the database 23 and generates a correction signal for the difference value A main server 2 comprising a second control unit 22 including a correction signal generation unit 221 output through the second communication unit 21; Remote error correction management system of a condenser using a wired or wireless network, characterized in that comprises a.
The method of claim 1,
The database 23 further includes the operation data for the shaft error correction operation sequence,
The second controller 22 further includes a work signal generator 222 for generating a work signal for the work data and outputting the work signal through the second communication unit 21.
The first control unit 14 analyzes the work signal received through the first communication unit 13 to generate a progress signal in time order and outputs the progress signal generation unit 144 through the first communication unit 13. ),
The third communication unit 31 receives the progress signal through the first communication unit 13, and the control signal generation unit 321 for generating and outputting the control signal of the vehicle to be measured according to the progress signal and the first A terminal device (3) comprising a third control unit (32) for controlling the third communication unit (31) and a display unit (33) for displaying the control signal to an operator; Remote error correction management system of a condenser using a wired or wireless network, characterized in that it further comprises.
The method of claim 1,
The accumulator device 1 further includes an auxiliary memory unit 15 storing a speed measured from a vehicle to be measured and a correction signal output from the main server 2,
The correction value generator 143 is configured to generate a correction value according to a correction signal stored in the auxiliary memory unit 15 and input the correction value to the correction unit.
The main server 2 further includes a main memory 24 for storing the measurement signal output from the accumulator 1 and the correction signal generated by the correction signal generator 221.
The second controller (22) is a remote error correction management system for a scaler using a wired or wireless network, characterized in that configured to generate the reference data through the measurement signal and the correction signal stored in the main memory unit (24).
The method of claim 1,
The sensor unit 11 further includes a temperature sensor 113 for measuring the temperature and a humidity sensor 114 for measuring the humidity,
The first control unit 14 further includes a temperature and humidity signal generation unit 142 for generating a temperature and humidity signal for the measured temperature and humidity and outputting the same through the first communication unit 13,
The reference data of the database (23) is a remote error correction management system of a weight scaler using a wired / wireless network, characterized in that further comprises the output value change data of the weight sensor to which changes in temperature and humidity are applied.
The method of claim 1,
The wired and wireless network,
Remote error correction management system of a condenser using a wired or wireless network, characterized in that selected from the Internet, intranet, CDMA network, TRS network.

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