CN112462646A - Auxiliary device for testing acceptance during measurement completion - Google Patents

Abstract

The invention discloses a metering completion acceptance auxiliary device which comprises a controller, a laser ranging sensor and a human-computer interaction interface, wherein the laser ranging sensor is electrically connected to a signal receiving end of the controller, and the human-computer interaction interface is electrically connected with the controller. The auxiliary device for measuring completion acceptance can ensure the accuracy of field measuring completion acceptance, promote the typical design standardization rate of the measuring device, and improve the working efficiency during meter installation and power connection by perfect measuring completion acceptance, thereby shortening the time consumed by the whole industry expansion process.

Description

Auxiliary device for testing acceptance during measurement completion

Technical Field

The invention relates to a metering completion acceptance auxiliary device, and belongs to the technical field of metering completion acceptance equipment.

Background

At present, the regulations such as a typical design of a metering device and DL/T448-.

In addition, in the process of acceptance inspection, on-site acceptance inspection personnel often complete acceptance inspection according to the working experience of the personnel, the condition that partial acceptance inspection is not in place exists, the on-site acceptance inspection link is more in the current photographing link, so that more picture data are obtained, time and labor are consumed in later-stage arrangement, the standard is not unified, the measurement is not standard, the new-assembly unified standard of the metering device is ensured, and the accuracy, stability and safety of the metering device are ensured from the source.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: an auxiliary device for measuring completion acceptance is provided to solve the above-mentioned problems in the prior art.

The technical scheme adopted by the invention is as follows: a metering completion acceptance auxiliary device comprises a controller, a laser ranging sensor and a human-computer interaction interface, wherein the laser ranging sensor is electrically connected to a signal receiving end of the controller, and the human-computer interaction interface is electrically connected with the controller.

Preferably, the controller is further connected to a USB interface.

Preferably, the controller is further connected with a wireless communication module.

Preferably, the wireless communication module is a 4G communication module.

Preferably, the controller is further connected with a storage module.

Preferably, the controller is further connected with a power management module.

Preferably, the human-computer interaction interface comprises a key and a liquid crystal display.

Preferably, the controller is connected to the laser ranging sensor, the human-computer interaction interface, the wireless communication module and the USB interface through a bus interface unit.

The invention has the beneficial effects that: compared with the prior art, the auxiliary device for measuring completion acceptance can ensure the accuracy of field measuring completion acceptance, improves the typical design standardization rate of the measuring device, and can improve the working efficiency during meter installation and power connection by perfect measuring completion acceptance, thereby shortening the time consumed by the whole industry expansion process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic block diagram of the present invention;

FIG. 3 is a circuit diagram of a power supply of the power management module;

FIG. 4 is a schematic diagram of a power supply II circuit of the power management module;

FIG. 5 is a power supply three circuit schematic of the power management module;

FIG. 6 is a power supply four circuit schematic of the power management module;

FIG. 7 is a five circuit schematic of the power supply of the power management module;

FIG. 8 is a schematic diagram of a controller circuit;

FIG. 9 is a schematic diagram of the peripheral circuitry of the controller;

FIG. 10 is a second schematic diagram of the peripheral circuitry of the controller;

FIG. 11 is a schematic diagram of the peripheral circuitry of the controller;

FIG. 12 is a schematic circuit diagram of a 4G communication module;

FIG. 13 is a schematic diagram of a chip circuit configuration of a display module;

FIG. 14 is a schematic diagram of a peripheral circuit of a chip circuit of the display module;

FIG. 15 is a schematic diagram of a key circuit.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

Example 1: as shown in fig. 1-15, a measurement completion acceptance auxiliary device comprises a controller, a laser ranging sensor and a human-computer interaction interface, wherein the laser ranging sensor is electrically connected to a signal receiving end of the controller, and the human-computer interaction interface is electrically connected with the controller; the controller is further connected with a USB interface, a wireless communication module, a storage module and a power management module, the wireless communication module adopts a 4G communication module, and the man-machine interaction interface comprises a key and a liquid crystal display screen.

The 4G communication module uses a core communication SIM 76004G wireless module, is compatible with an LTE-TDD/LTE-FDD/TD-SCDMA/CDMA/GSM network, has a 4G maximum uplink rate of 50Mbps and a 4G maximum downlink rate of 150Mbps, and supports USB2.0 and UART interfaces.

Preferably, the controller is connected to the laser ranging sensor, the man-machine interface, the wireless communication module and the USB interface through the bus interface unit, and the model of the laser ranging sensor is VL53L0CXV0 DH/1. The wavelength of the laser ranging sensor is 940nm, the maximum measuring distance is 2m, the measuring precision is 1cm, and the safety of human eyes is guaranteed.

The controller adopts a NUC972 main controller chip, a main frequency of 400MHZ, a memory of 128Mbyte and a flash of 512Mbyte, runs a linux 4.2 operating system and uses a QT desktop.

The laser ranging sensor measures distance data through the time difference between laser emission and reflected laser receiving, and the data are transmitted to the CPU unit for processing such as filtering, data conversion and the like, and finally accurate distance data are obtained; the data can be transmitted to the liquid crystal display screen and the 4G module at the same time, and local display and remote transmission are carried out respectively.

The power management module (power system) generates various voltages to supply power to each module in the system, for example, 3.8V supplies power to the 4G module; the CPU unit is powered by 3.3V, 1.8V and 1.2V. The button keyboard is used for setting various parameters through the liquid crystal display screen.

In the rule of acceptance of the metering device, the distances to be measured are all smaller than 2m, the precision is 1mm, and in addition, the distance measurement cannot be guaranteed to be in an absolute level state in the distance measurement process, so that the triangular reflection method is a method relatively suitable for the device.

Triangulation laser ranging: the measuring method of the laser displacement sensor is called as a laser triangular reflection method, the precision of a laser range finder is constant, and the precision of 10 meters and the precision of 100 meters measured by the same range finder are the same. The measurement precision of the laser triangulation reflection method is related to the measurement range, and the larger the measurement range is, the lower the precision is.

Another principle of laser ranging is the principle of laser triangular reflection: the semiconductor laser is focused to the object to be measured by the lens. Reflected light is collected by the lens and projected onto the CCD array; the signal processor calculates the position of the light spot on the array by trigonometric function to obtain the distance to the object.

Laser triangulation: the laser emitter emits visible red laser to the surface of an object through the lens, the laser reflected by the object passes through the receiver lens and is received by the internal CCD linear camera, and the CCD linear camera can 'see' the light spot under different angles according to different distances. According to the angle, namely the known distance between the laser and the camera, the digital signal processor can calculate the distance between the sensor and the measured object; meanwhile, the position of the light beam on the receiving element is processed by an analog circuit and a digital circuit, and is analyzed by a microprocessor, a corresponding output value is calculated, and a standard data signal is proportionally output in an analog quantity window set by a user. If the switching value output is used, the switching value output is conducted in a set window, and is cut off outside the window. In addition, the analog quantity and the switching value output can be provided with independent detection windows.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.

Claims (8)

1. A measurement completion acceptance auxiliary device is characterized in that: the system comprises a controller, a laser ranging sensor and a human-computer interaction interface, wherein the laser ranging sensor is electrically connected to a signal receiving end of the controller, and the human-computer interaction interface is electrically connected with the controller.

2. A completion measurement acceptance aid according to claim 1, wherein: the controller is also connected with a USB interface.

3. A completion measurement acceptance aid according to claim 1, wherein: the controller is also connected with a wireless communication module.

4. A completion measurement acceptance aid according to claim 3, wherein: the wireless communication module adopts a 4G communication module.

5. A completion measurement acceptance aid according to claim 1, wherein: the controller is also connected with a storage module.

6. A completion measurement acceptance aid according to claim 1, wherein: the controller is also connected with a power management module.

7. A completion measurement acceptance aid according to claim 1, wherein: the man-machine interaction interface comprises a key and a liquid crystal display screen.

8. A completion measurement acceptance aid according to claim 1, wherein: the controller is connected to the laser ranging sensor, the human-computer interaction interface, the wireless communication module and the USB interface through the bus interface unit.

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