[Instrument latest patent] A portable camera water meter reading device

[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduced a national invention-authorized patent—a portable camera meter reading device. The patent was applied for by Haidian Marketing Branch of Beijing Water Supply Group Co., Ltd. and was authorized to be announced on November 17, 2017.
Content Description
The utility model relates to the technical field of water meter information acquisition, in particular to a portable camera water meter reading device.
Background of the invention
At present, most of the water companies around the country use manual meter reading. However, this method has always been misunderstood, missed, and inaccurate valuation.
In order to solve the erroneous data of manual meter reading, in related art, related solutions can generally be divided into two types: bus type remote meter reading and wireless type remote meter reading. The bus-based remote meter reading program is to set up an electronic water meter in the community and transmit the data of each electronic water meter to the server through the bus. This bus-based remote meter reading scheme has the advantages of stable transmission and low cost. The disadvantage is the large amount of construction that requires the deployment of a bus. It is mainly applicable to newly built communities.
The wireless remote meter reading program is to install a wireless communication module on a single meter to transmit the meter data to a nearby data collector through a wireless module, and then upload it to the cloud server by the collector through GPRS transmission, or Install the GPRS module on a single water meter and upload it directly to the cloud server as a water meter. This wireless remote meter reading scheme has the advantages of simple installation and high transmission speed. Disadvantages are the high cost and the problem of signal instability at the same time. They are greatly affected by the surrounding environment and are not suitable for areas with poor signal or severe interference.
In summary, how to improve meter reading efficiency under the premise of saving manpower cost and material cost is a technical problem that technical personnel in the field need to solve at present.
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 increase the meter reading efficiency under the premise of saving labor costs and material costs. The specific plan is as follows:
A portable camera type water meter reading device includes a low illumination camera circuit for collecting water meter images, an image processing chip for processing the water meter images to obtain a compressed image, and a communication for sending the compressed image to a corresponding terminal a module, a control chip for controlling the communication module to send the compressed image, and a power supply module.



The figure is a flow chart of the structure of a portable camera-type meter reading device disclosed in the present invention

Preferably, the low illumination 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 voltage regulator chip for stabilizing the voltage output by the power supply module and two respectively connected a filter capacitor at both ends of the low-dropout linear regulator chip; the camera interface circuit includes an interface processing chip; the camera includes a 300,000-pixel low-light 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 illumination camera circuit and an output interface for output processing the BMP picture to obtain a JPEG picture.
The image processing chip is further 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 light-emitting diodes connected in parallel, and the power module is connected to the triode. The emitter is grounded, and the base and the emitter of the transistor are provided with a resistor. The power module includes a rechargeable battery and a Buck-Boost circuit, wherein the Buck-Boost circuit includes a Buck-Boost control chip, a capacitor disposed at the input and the output of the Buck-Boost control chip, and the Buck-Boost 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 illumination camera circuit for collecting the water meter image, an image processing chip for processing the water meter image to obtain a compressed image, and is used for sending the compressed image. A communication module to a corresponding terminal, a control chip for controlling the communication module to send the compressed image, and a power supply module. It can be seen that the meter reading personnel uses the low illumination camera circuit in the utility model to collect the water meter image, and 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 reading personnel. On the terminal device, the meter reading efficiency of the meter reading personnel is improved without a large-scale change of personnel and administration, and there is no need to change the existing water meter system and the cost is low.
For more information, please download the full specification of the patent.
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