Device for separately detecting faults of entire-vehicle type weighing sensors
A technology of weighing sensor and fault detection, applied in the field of weighing, can solve problems such as time-consuming, driver complaints, and indeterminate sensor faults, and achieve the effect of simple detection methods, fast and accurate processing
Inactive Publication Date: 2017-12-01
江西众加利高科技股份有限公司
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Problems solved by technology
[0003] The current sensors adopt the parallel mode, and it is impossible to determine which sensor is faulty if a large number of sensors fail
Usually, the substitution method is used to replace the test, and the installation environment of the weighing platform is limited. It is time-consuming to replace a sensor. Usually, the lane is interrupted for a long time because of a sensor failure, which has a bad impact on user experience and social benefits.
And sometimes sensor failures cause weight errors and are not easy to find. Less weight will cause losses to the road company and affect the national overshooting requirements. Too much weight will cause drivers to complain.
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[0016] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the test bench proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
[0017] figure 1 It is a structural schematic diagram of an implementation of a device for separately detecting faults of vehicle load cells provided by an embodiment of the present invention. Such as figure 1 As shown, the device for detecting failures of the vehicle load cell provided in this embodiment includes: a ...
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The invention relates to a device for separately detecting faults of entire-vehicle type weighing sensors, comprising: weighing sensors, multi-channel communication selective switches, simulated sampling circuits and a controller. The output ends of the weighing sensors are connected with the input ends of the multi-channel communication selective switches; and the output ends of the multi-channel communication selective switches are connected with the input end of a high precision AD chip. The signal output end of the high precision AD chip is connected with the signal input end of the controller. According to the device of the invention, it is possible to monitor and analyze the states of the weighing sensors in multiple channels in real time and to instantly determine the faults of the sensors so as to avoid the weight calculation errors caused by the faults of the sensors. In addition, through the communication between the controller and the instrument panel, the instrument panel is able to display the states of the sensors in multiple channels directly so that the repair men can deal with the faults of the weighing sensors rapidly and accurately.
Description
technical field [0001] The invention relates to the technical field of weighing, in particular to a device for respectively detecting faults of vehicle-type weighing sensors. Background technique [0002] my country's expressway construction and road transportation scale will usher in an unprecedented development peak. It is an imperative trend for the country to fully implement the electronic weight toll management system and use the emerging Internet of Things technology to conduct highly centralized and comprehensive management. At present, charging by vehicle weight is also a mandatory requirement. The traffic flow of charging by weight is very large, and it is necessary to minimize the impact on traffic caused by the failure of weighing equipment and weighing errors. Therefore, it is an important and necessary technology to quickly and accurately identify the fault of the load cell. [0003] The current sensors adopt a parallel mode, and it is impossible to determine w...
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IPC IPC(8): G01G23/01
CPCG01G23/01
Inventor 唐振中胡其锋张立兵饶繁星
Owner 江西众加利高科技股份有限公司