[New patent introduction] A portable camera water meter reading device

On November 17, 2017, Haidian Marketing Branch of Beijing Water Supply Group Co., Ltd. applied for a national invention authorized patent-a portable camera-type water meter reading device.

Content description

The utility model relates to the technical field of water meter information acquisition, in particular to a portable camera type water meter reading device.

Background of the invention

At present, most water companies in various places use manual meter reading methods. However, this method has always had problems such as wrong copy, missed copy, and inaccurate valuation.

In order to solve the erroneous data in manual meter reading, in the prior art, related solutions can generally be divided into two types: bus type remote meter reading and wireless type remote meter reading. The bus type remote meter reading program is to set up electronic water meters in the community, and transmit the data of each electronic water meter to the server through the bus. This bus type remote meter reading program has the advantages of stable transmission and low price. The disadvantage is that the construction volume is large and the bus needs to be laid. Mainly applicable to newly built communities.

The wireless remote meter reading solution is to install a wireless communication module on a single water meter, and transmit the water meter data to a nearby data collector through the wireless module, and then upload it to the cloud server by GPRS transmission by the collector, or use Install a GPRS module on a single water meter, and upload it directly to the cloud server in units of water meters. This wireless remote meter reading program has the advantages of simple installation and fast transmission speed. The disadvantage is that the cost is high, and there is the problem of signal instability. It is greatly affected by the surrounding environment and is not suitable for areas with poor signal or severe interference.

In summary, how to improve the efficiency of water meter reading on the premise of saving labor and material costs is a technical problem that needs to be solved by those skilled in the art.

Summary of the invention

In view of this, the purpose of the present invention is to provide a portable camera-type water meter reading device, which can significantly improve the efficiency of water meter reading while saving labor and material costs. The specific plan is as follows:

A portable camera-type water meter reading device, including a low-illuminance camera circuit for collecting water meter images, an image processing chip for processing the water meter image to obtain a compressed image, and communication for sending the compressed image to a corresponding terminal Module, a control chip and a power module for controlling the communication module to send the compressed image.

The figure is a structural flow chart of a portable camera-type water meter reading device disclosed by the utility model

Preferably, the low-illuminance camera circuit includes a camera power supply circuit, a camera interface circuit, and a camera, wherein the camera power supply circuit includes a low-dropout linear regulator chip for stabilizing the voltage output by the power supply module and two respectively connected Filter capacitors at both ends of the low-dropout linear voltage regulator chip; the camera interface circuit includes an interface processing chip; the camera includes a 300,000-pixel low-illuminance image sensor and a 110-degree wide-angle lens. The image processing chip is provided with an input interface for receiving the BMP picture transmitted by the low-light camera circuit and an output interface for outputting and processing the BMP picture to obtain a JPEG picture.

The image processing chip is also provided with an exposure control interface, wherein the exposure control interface is connected to the base of a triode, the collector of the triode is connected in series with two parallel light-emitting diodes and then connected to the power module, the triode The emitter of the transistor is grounded, and the base and emitter of the triode are provided with resistors. The power module includes a rechargeable battery and a Buck-Boost circuit, where the Buck-Boost circuit includes a Buck-Boost control chip, a capacitor set at the input end and output end of the Buck-Boost control chip, and the Buck-Boost circuit. Control the inductance of the chip connection. The communication module includes a Bluetooth module, an infrared module, a WiFi module or a data line interface.

The utility model discloses a portable camera-type water meter reading device, which comprises a low-illuminance camera circuit for collecting water meter images, an image processing chip for processing the water meter image to obtain a compressed image, and sending the compressed image A communication module to the corresponding terminal, a control chip and a power supply module for controlling the communication module to send the compressed image. It can be seen that the meter reader uses the low-illuminance camera circuit in the present utility model to collect the water meter image, the image processing chip processes the water meter image to obtain a compressed image to improve the transmission efficiency, and the communication module transmits the compressed image to the corresponding meter reader On the terminal equipment, without making large-scale changes to personnel and administration, the meter reading efficiency of meter readers is improved, and the existing water meter system does not need to be changed, and the cost is low.

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