CN214653391U - Weight detection system based on high-altitude vehicle platform - Google Patents
Weight detection system based on high-altitude vehicle platform Download PDFInfo
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Abstract
The utility model provides a weight detecting system based on high-altitude vehicle platform, include: the weighing sensor is positioned on a scissor of the overhead vehicle and used for sensing the weight of an object positioned on the scissor and converting the weight into a weight signal; and the platform control unit is positioned on the scissors and connected with the weighing sensor to receive the weight signal and process the weight signal to obtain the weight of the object, and the platform control unit is at least provided with one channel. The platform control unit has the function of weighing detection, can test the weight of an object, is positioned on the same platform as the weighing sensor, can prevent the weight signal of the weighing sensor from being interfered or lost in the transmission process, and can ensure that the obtained weight signal is more accurate. And the platform control unit is provided with at least one channel, so that when a plurality of weighing sensors are used, data of the weighing sensors can be processed without adding extra IO (input/output) interfaces, and the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the engineering machine tool technique and specifically relates to a weight detecting system based on high altitude car platform is related to.
Background
The control system of the scissor aerial work platform consists of a Platform Control Unit (PCU) + an Electronic Control Unit (ECU)/a Ground Control Unit (GCU), the whole set of system is completely provided by a controller manufacturer in a matching way, and for different controllers, market replacement of accessories of the Platform Control Unit (PCU) and adaptation of the Platform Control Unit (PCU) to different controllers are hindered. In addition, the weighing mode used on the current aerial work platform is that a pressure sensor is arranged on an oil cylinder of a vehicle fork frame of a scissor fork, and the load of the whole vehicle is reflected by detecting the pressure of the oil cylinder, and the mode has the following defects: due to the mechanical structure limitation on the vehicle, the pressure difference reflected on the oil cylinder is large when the platform is at different heights under the same weight, which brings inconvenience to the calibration and detection of the sensor. Because the load is reflected in a mode of not directly measuring the load of the whole vehicle but using the pressure of the oil cylinder, the condition that the load of the vehicle cannot be accurately measured can be caused, meanwhile, the pressure on the oil cylinder is not only influenced by the load of the vehicle, but also can cause errors when the same load is at different temperatures because hydraulic oil is greatly influenced by the temperature. The vehicle of weighing sensor (LoadCell) that uses in the existing market, its signal acquisition is accomplished by accuse Electronic Control Unit (ECU)/Ground Control Unit (GCU) down, or increases the IO module of weighing sensor (LoadCell) and carry out special collection, and this kind of mode can have following defect: corresponding software and hardware costs are increased due to collection of a lower control Electronic Control Unit (ECU)/Ground Control Unit (GCU) or an additionally added IO module. When the height of the whole vehicle is high, because signals of a weighing sensor (LoadCell) are small, data of the sensor (LoadCell) of a high platform are detected from a lower control Electronic Control Unit (ECU)/a Ground Control Unit (GCU), and weighing information may be inaccurate due to long-distance transmission.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a weight detecting system based on high-altitude car platform can test the weight of the object that is located the scissors fork of high-altitude car to make the test result more accurate.
In order to achieve the above object, the utility model provides a weight detecting system based on high-altitude vehicle platform for detect the weight that is located the object on cutting the fork, include:
the weighing sensor is positioned on the scissors and used for sensing the weight of an object positioned on the scissors and converting the weight into a weight signal;
and the platform control unit is positioned on the scissors, receives the weight signal together with the weighing sensor, and processes the weight signal to obtain the weight of the object, and the platform control unit is at least provided with one channel.
Optionally, in the weight detecting system, the weight detecting system further includes an electronic control unit or a ground control unit, and the electronic control unit or the ground control unit is connected to the platform control unit through a CAN bus and CAN receive data of the platform control unit.
Optionally, in the weight detecting system, the platform control unit has two channels, which are a first channel and a second channel, respectively, and the two channels receive the weight signal of the weighing sensor respectively.
Optionally, in the weight detecting system, the platform control unit has a plurality of interfaces, and the plurality of interfaces are respectively connected to a power signal, a ground or a signal of the weighing sensor.
Optionally, in the weight detecting system, the platform control unit has 14 interfaces.
Optionally, in the weight detecting system, the number of the load cells is at least one.
Optionally, in the weight detecting system, the weighing sensor has two channels, which are a first channel and a second channel, respectively, and the two channels transmit weight signals with the two channels of the platform control unit, respectively.
Optionally, in the weight detecting system, the first channel of the platform control unit is connected to the first channel of the load cell, and the second channel of the platform control unit is connected to the second channel of the load cell.
Optionally, in the weight detecting system, the number of the load cells is plural.
Optionally, in the weight detecting system, the first channel of the platform control unit is connected to the first channels of the plurality of load cells, and the second channel of the platform control unit is connected to the second channels of the plurality of load cells.
In the weight detection system based on the high-altitude vehicle platform, the weighing sensor is positioned on the scissor fork and used for sensing the weight of an object positioned on the scissor fork and converting the weight into a weight signal; and the platform control unit is positioned on the scissors, receives the weight signal together with the weighing sensor, and processes the weight signal to obtain the weight of the object, and the platform control unit is at least provided with one channel. The platform control unit has the function of weighing detection, can test the weight of an object, is positioned on the same platform as the weighing sensor, can prevent the weight signal of the weighing sensor from being interfered or lost in the transmission process, and can ensure that the obtained weight signal is more accurate. And the platform control unit is provided with at least one channel, so that when a plurality of weighing sensors are used, data of the weighing sensors can be processed without adding extra IO (input/output) interfaces, and the cost is reduced.
Drawings
FIG. 1 is a schematic view of a weight detection system according to an embodiment of the present invention;
in the figure: 100-weighing sensor, 200-platform control unit.
Detailed Description
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
In the following, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances. Similarly, if the method described herein comprises a series of steps, the order in which these steps are presented herein is not necessarily the only order in which these steps may be performed, and some of the described steps may be omitted and/or some other steps not described herein may be added to the method.
Referring to fig. 1, the utility model provides a weight detecting system based on high-altitude vehicle platform for detect the weight of the object that is located the scissors fork of high-altitude vehicle, include:
the weighing sensor 100 is positioned on the scissors and used for sensing the weight of an object positioned on the scissors and converting the weight into a weight signal;
a platform control unit 200 having a function of weighing detection, located on the scissors, receiving the weight signal with the load cell 100, and processing the weight signal to obtain the weight of the object, wherein the platform control unit 200 has at least one channel.
Further, the weight detecting system further includes an Electronic Control Unit (ECU) or a ground control unit (not shown), and the Electronic Control Unit (ECU) or the platform control unit 200(PCU) is located at a place far from the scissor fork, and is connected to the platform control unit 200 through a CAN bus connection to receive data of the platform control unit 200. The scissors have a platform on which the object can be placed, on which the platform control unit 200 is located, and under which the LOAD CELL 100 is located. The weight sensor 100(LOAD CELL) may sense the weight of an object on the platform, and convert the weight into a voltage signal or a current signal to the platform control unit 200, the platform control unit 200 processes the weight signal by itself or the platform control unit 200 converts the weight signal, which is the voltage signal or the current signal, into a digital signal, and then transmits the digital signal to an Electronic Control Unit (ECU) or a ground control unit through a CAN bus to be processed, so as to determine the weight of the object, and meanwhile, the platform control unit 200 may also process the digital signal by itself, so as to determine the weight of the object. In the prior art, the weight of an object on a platform is sensed by the LOAD CELL 100 and then directly transmitted to the Electronic Control Unit (ECU) or the ground control unit for processing, but because the LOAD CELL 100 is far away from the ECU or the ground control unit, a signal transmitted by the LOAD CELL 100 is interfered during transmission, and the signal obtained by the ECU or the ground control unit is small and even causes signal loss, so that the accuracy of weighing information is affected. And the embodiment of the utility model provides a weighing sensor 100 that selects output differential signal, platform control unit 200 gathers the voltage signal of weighing sensor 100(LOAD CELL) output through corresponding port, platform control unit 200 internal circuit is with the voltage signal sampling amplification back, analog-to-digital conversion is carried out again, and, obtain actual sensor value after the software filtering, this collection value can directly be sent and is used for the LOAD to detect for accuse Electronic Control Unit (ECU) or Ground Control Unit (GCU) down, also can accomplish the function that the LOAD was markd and the LOAD detected by platform control unit 200(PCU) oneself. The utility model discloses platform control unit 200 adopts unified open communication protocol outward, and this agreement also can be appointed by the customer simultaneously to improve the commonality of platform control unit 200 accessory.
Further, the platform control unit 200 has two channels, which are a first channel and a second channel. Both channels can transmit signals with the LOAD CELL 100(LOAD CELL), and one channel or two channels can be used when the LOAD CELL is used, so that the cost of port resource increase caused by simultaneous use of a plurality of LOAD CELLs 100(LOAD CELL) can be saved. Platform control unit 200 may support single-channel and dual-channel LoadCell acquisition, and simultaneously support acquisition of multiple LoadCell parallel signal outputs, where the number of sensors may be specified by a customer.
In the embodiment of the present invention, the platform control unit 200 has a plurality of interfaces, and the interfaces are respectively connected to the power signal, the ground or the signal of the weighing sensor 100(LOAD CELL). The interfaces of the platform control unit 200 that can enable the platform control unit 200 to normally operate are the prior art and are not described herein again.
In the embodiment of the present invention, the platform control unit 200 has 14 interfaces. The platform control unit 200 includes an interface, and the platform control unit 200 includes a ground terminal, three power terminals, two CAN bus interfaces, a first channel power terminal, two first channel signal terminals, a first channel ground terminal, a second channel power terminal, two second channel signal terminals, and a second channel ground terminal. For example, the column of "mV signal LoadCell" indicates a signal to which the port of platform control unit 200 is to be connected when the weight is a voltage signal, and the column of "mA signal LoadCell" indicates a signal to which the port of platform control unit 200 is to be connected when the weight is a current signal, as defined by the pins of the following table. Taking the weight as a voltage signal, for example, the first pin is grounded, the second pin is connected to the high level of the CAN bus, the third pin, the fourth pin and the sixth pin are connected to the 12/24V voltage, the fifth pin is connected to the low level of the CAN bus, the seventh pin is connected to the voltage, and the eighth pin and the ninth pin are connected to the signal of the LOAD CELL 100. The 10 th pin is grounded, the 11 th pin is connected with the voltage of the second channel, the 12 th pin and the 13 th pin are connected with the signal of the LOAD CELL 100(LOAD CELL), and the 14 th pin is grounded. For example, if the voltage signal is 2mv, the signals of the 8 th pin and the 9 th pin are 1.5mv, and the signals of the 12 th pin and the 13 th pin are 2.5 mv. The transmission of the signals can be more accurate through the transmission mode of the differential signals.
| Pin definition | mV Signal Loadcell | mA signal Loadcell |
| 1 | GND | GND |
| 2 | CANH | CANH |
| 3 | 12/ |
12/24V OUT |
| 4 | 12/24V IN | 12/24V IN |
| 5 | CANL | CANL |
| 6 | 12/ |
12/24V DI |
| 7 | LoadCell_Channel1_VCC | LoadCell_Channel1_VCC |
| 8 | LoadCell_Channel1_SIGNAL+ | LoadCell_Channel1_SIGNAL(4～20ma) |
| 9 | LoadCell_Channel1_SIGNAL- | |
| 10 | LoadCell_Channel1_GND | LoadCell_Channel1_GND |
| 11 | LoadCell_Channel2_VCC | LoadCell_Channel2_VCC |
| 12 | LoadCell_Channel2_SIGNAL+ | LoadCell_Channel2_SIGNAL(4～20ma) |
| 13 | LoadCell_Channel2_SIGNAL- | |
| 14 | LoadCell_Channel2_GND | LoadCell_Channel2_GND |
Further, the number of the LOAD CELLs 100(LOAD CELL) is at least one.
Further, the LOAD CELL 100(LOAD CELL) has a first channel and a second channel.
Further, a first channel of the platform control unit 200 is connected to a first channel of the LOAD CELL 100(LOAD CELL), and a second channel of the platform control unit 200 is connected to a second channel of the LOAD CELL 100(LOAD CELL).
Further, the LOAD CELL 100(LOAD CELL) is plural. The use of multiple LOAD CELLs 100(LOAD CELL) may allow for more accurate weight measurement of the object. The first channels of the plurality of LOAD CELLs 100(LOAD CELLs) are connected to the first channel of the platform control unit 200, the second channels of the plurality of LOAD CELLs 100(LOAD CELLs) are connected to the second channel of the platform control unit 200, the weights of the objects obtained by the plurality of sensors are averaged, and the average value of the signals is converted into a voltage signal or a current signal and transmitted to the platform control unit 200.
Further, a first channel of the platform control unit 200 is connected to a first channel of the plurality of LOAD CELLs 100(LOAD CELL), and a second channel of the platform control unit 200 is connected to a second channel of the plurality of LOAD CELLs 100(LOAD CELL).
In summary, in the weight detection system based on the high-altitude vehicle platform provided by the embodiment of the present invention, the weighing sensor is located on the scissors and is used for sensing the weight of the object located on the scissors and converting the weight into a weight signal; and the platform control unit is positioned on the scissors and connected with the weighing sensor to receive the weight signal and process the weight signal to obtain the weight of the object, and the platform control unit is at least provided with one channel. The platform control unit has the function of weighing detection, can test the weight of an object, is positioned on the same platform as the weighing sensor, can prevent the weight signal of the weighing sensor from being interfered or lost in the transmission process, and can ensure that the obtained weight signal is more accurate. And the platform control unit is provided with at least one channel, so that when a plurality of weighing sensors are used, data of the weighing sensors can be processed without adding extra IO (input/output) interfaces, and the cost is reduced.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (10)
1. A weight detection system based on a high-altitude vehicle platform is used for detecting the weight of an object on a scissor fork of a high-altitude vehicle, and is characterized by comprising:
the weighing sensor is positioned on the scissors and used for sensing the weight of an object positioned on the scissors and converting the weight into a weight signal;
and the platform control unit is positioned on the scissors, receives the weight signal with the weighing sensor, processes the weight signal to obtain the weight of the object, and is at least provided with a channel.
2. The weight sensing system of claim 1, further comprising an electronic control unit or a ground control unit, the electronic control unit or the ground control unit being connected to the platform control unit via a CAN bus and capable of receiving data from the platform control unit.
3. The weight sensing system of claim 1, wherein the platform control unit has two channels, a first channel and a second channel, respectively, each receiving the weight signal of the load cell.
4. The weight sensing system of claim 1, wherein the platform control unit has a plurality of interfaces to which a power signal, a ground, or a signal of the load cell is connected, respectively.
5. The weight-sensing system of claim 4, wherein the platform control unit has 14 interfaces.
6. The weight sensing system of claim 1, wherein the load cells are at least one in number.
7. The weight-sensing system of claim 3, wherein the load cell has two channels, a first channel and a second channel, respectively, for transmitting the weight signal with the two channels of the platform control unit, respectively.
8. The weight sensing system of claim 7, wherein the first channel of the platform control unit is coupled to the first channel of the load cell and the second channel of the platform control unit is coupled to the second channel of the load cell.
9. The weight sensing system of claim 6, wherein the load cell is plural.
10. The weight sensing system of claim 9, wherein the first channel of the platform control unit is coupled to a first channel of a plurality of the load cells, and the second channel of the platform control unit is coupled to a second channel of a plurality of the load cells.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023124731.7U CN214653391U (en) | 2020-12-21 | 2020-12-21 | Weight detection system based on high-altitude vehicle platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023124731.7U CN214653391U (en) | 2020-12-21 | 2020-12-21 | Weight detection system based on high-altitude vehicle platform |
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| CN214653391U true CN214653391U (en) | 2021-11-09 |
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Address after: Building 1 and 1-3 floors of Building 2 of Jinan Energy Industry Park, No. 1815 Gangyuan 7th Road, High tech Zone, Jinan City, Shandong Province, 250104 Patentee after: Beigu Electronics Co.,Ltd. Patentee after: Beigu Electronics Co.,Ltd. Shanghai Branch Address before: 250104 building 20, zhizaogu, 2966 Chunhui Road, high tech Zone, Jinan City, Shandong Province Patentee before: NORTH VALLEY ELECTRONICS Co.,Ltd. Patentee before: Beigu Electronics Co.,Ltd. Shanghai Branch |
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