Anti-cheating intelligent weighing equipment

Abstract

The utility model relates to the technical field of weighing, and specifically discloses an anti-cheating intelligent weighing device comprising an MCU processor, an AD converter, a sampling resistor and a sensor, the output end of the AD converter is electrically connected with the input end of the MCU processor, the output end of the sampling resistor is electrically connected with the output end of the AD converter, and the output end of the sampling resistor is electrically connected with the output end of the MCU processor. The sensor is electrically connected with the input end of the sampling resistor. The sensor detects the power consumption current and compares the power consumption current with the factory basic current, and when the detected value deviates from the preset value, it is judged that a cheating device exists, and the system gives an alarm, so that the anti-cheating effect is achieved, the anti-cheating device is fair and just in the transaction process, and illegal and illegal operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing, in particular to an anti-cheating intelligent weighing device. Background Art

[0002] At present, weighing systems are used as weight measuring instruments in industry and trade. Weighing equipment uses the principle of force deformation balance to measure the mass of an object. The deformation changes with the change of gravitational acceleration. The lever balance measures the mass of the object being measured based on the balance between the weight of the calibrated weight and the weight of the object being measured on the lever.

[0003] In the prior art, weight is loaded on an analog sensor, and the sensor outputs a millivolt signal proportional to the weight. After AD analog-to-digital conversion, the digital signal enters the microprocessor MCU for processing, and the calculated weight is displayed.

[0004] However, in the prior art, a device for changing weighing weight is formed by a wireless transmitter and a wireless receiver. The wireless receiver uses the received wireless signal command to adjust the millivolt signal size between the analog sensor and the AD converter, thereby changing the displayed weight and achieving the purpose of cheating. Utility Model Content

[0005] The utility model aims to provide an anti-cheating intelligent weighing device, aiming to solve the technical problem in the prior art that a wireless receiver uses a received wireless signal command to adjust the millivolt signal size between an analog sensor and an AD converter, thereby changing the displayed weight.

[0006] To achieve the above-mentioned purpose, the utility model adopts an anti-cheating intelligent weighing device, including an MCU processor, an AD converter, a sampling resistor and a sensor, the output end of the AD converter is electrically connected to the input end of the MCU processor, the output end of the sampling resistor is electrically connected to the output end of the AD converter, and the sensor is electrically connected to the input end of the sampling resistor.

[0007] Among them, the sensor has a positive power supply terminal, a negative power supply terminal, a signal positive terminal and a signal negative terminal, the positive power supply terminal is electrically connected to the input end of the sampling resistor, and the signal positive terminal and the signal negative terminal are respectively arranged between the positive power supply terminal and the negative power supply terminal.

[0008] Wherein, the anti-cheating intelligent weighing device also includes a power module, and the output end of the power module is electrically connected to the input end of the sampling resistor.

[0009] The beneficial effect of an anti-cheating intelligent weighing device of the utility model is as follows: the power consumption current of the sensor is recorded and stored in the MCU processor through the sampling resistor. When a cheating device is connected to the anti-cheating intelligent weighing device, it will be connected in parallel with the sensor, resulting in an increase in the overall power consumption of the anti-cheating intelligent weighing device. Therefore, the overall current of the anti-cheating intelligent weighing device will be increased. The sensor detects the power consumption current and compares it with the basic current at the factory. When the detection value deviates from the preset value, it is determined that a cheating device exists, and the system generates an alarm, thereby achieving an anti-cheating effect, making it fair and just in the transaction process, and avoiding illegal and irregular operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 The utility model is a structural schematic diagram of an anti-cheating intelligent weighing device.

[0012] Figure 2 The utility model is a structural schematic diagram of an anti-cheating intelligent weighing device connected to a cheating device.

[0013] 1-MCU processor, 2-AD converter, 3-sampling resistor, 4-sensor, 5-power module, 6-positive power terminal, 7-negative power terminal, 8-signal positive terminal, 9-signal negative terminal. DETAILED DESCRIPTION

[0014] See also Figure 1 and Figure 2 The utility model provides an anti-cheating intelligent weighing device, including an MCU processor 1, an AD converter 2, a sampling resistor 3 and a sensor 4, wherein the output end of the AD converter 2 is electrically connected to the input end of the MCU processor 1, the output end of the sampling resistor 3 is electrically connected to the output end of the AD converter 2, and the sensor 4 is electrically connected to the input end of the sampling resistor 3.

[0015] Furthermore, the sensor 4 has a positive power supply terminal 6, a negative power supply terminal 7, a positive signal terminal 8 and a negative signal terminal 9, the positive power supply terminal 6 is electrically connected to the input end of the sampling resistor 3, and the positive signal terminal 8 and the negative signal terminal 9 are respectively arranged between the positive power supply terminal 6 and the negative power supply terminal 7.

[0016] Furthermore, the anti-cheating intelligent weighing device also includes a power module 5 , and the output end of the power module 5 is electrically connected to the input end of the sampling resistor 3 .

[0017] In this embodiment, the power consumption current of the sensor 4 is recorded and stored in the MCU processor 1 through the sampling resistor 3. When a cheating device is connected to the anti-cheating intelligent weighing device, it will be connected in parallel with the sensor 4, resulting in an increase in the overall power consumption of the anti-cheating intelligent weighing device. Therefore, the overall current of the anti-cheating intelligent weighing device will be increased. The sensor 4 detects the power consumption current and compares it with the factory basic current. When the detection value deviates from the preset value, it is determined that there is a cheating device, and the system generates an alarm, thereby achieving an anti-cheating effect, making it fair and just in the transaction process, and avoiding illegal and irregular operations;

[0018] The anti-cheating intelligent weighing device is powered by the power module 5, the small number of the sensor 4 is recorded through the sampling resistor 3, converted by the AD converter 2, and calculated and stored after being processed by the MCU processor 1, and the MCU processor 1 compares the measured current with the basic current to detect the cheating device.

[0019] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An anti-cheating intelligent weighing device, characterized in that: It includes an MCU processor, an AD converter, a sampling resistor and a sensor, wherein the output end of the AD converter is electrically connected to the input end of the MCU processor, the output end of the sampling resistor is electrically connected to the output end of the AD converter, and the sensor is electrically connected to the input end of the sampling resistor.

2. The anti-cheating intelligent weighing device according to claim 1, characterized in that: The sensor comprises a positive power terminal, a negative power terminal, a positive signal terminal and a negative signal terminal, the positive power terminal is electrically connected to the input end of the sampling resistor, and the positive signal terminal and the negative signal terminal are respectively arranged between the positive power terminal and the negative power terminal.

3. The anti-cheating intelligent weighing device according to claim 1, characterized in that: The anti-cheating intelligent weighing device also includes a power module, and the output end of the power module is electrically connected to the input end of the sampling resistor.

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