CN201503295U

CN201503295U - Gas wireless meter reading system

Info

Publication number: CN201503295U
Application number: CN2009201572587U
Authority: CN
Inventors: 吴庆彬; 徐晓明
Original assignee: Wuxi Hongye Tengwen Electronic Technology Co Ltd
Current assignee: Wuxi Hongye Tengwen Electronic Technology Co Ltd
Priority date: 2009-05-26
Filing date: 2009-05-26
Publication date: 2010-06-09
Anticipated expiration: 2019-05-26

Abstract

The utility model relates to a gas wireless meter reading system, comprising an optical collection module and an image recognition module which is mutually and electrically connected with the optical collection module, wherein the image recognition module can be connected and communicated with a network by GPRS / CDMA; the optical collection module comprises a lens, an image sensor, an A / D analog-digital converter and a digital signal processor which are electrically connected in sequence; and the image recognition module comprises an image pre-processor, an image cutting module, a standardized module, a thinning module, a feature extraction module and a character recognition module which are electrically connected in sequence. The utility model has the advantages that the 100-200dpi data matrix of a gas meter is obtained, the collected data is less, and the gas wireless meter reading system is applied the situation that a SCM adopts a method of artificial intelligence to identify the number of the gas meter in site and then effectively carries out remote data transmission according to the own characteristics of wireless networks, namely Zigbee and GPRS / CDMA (3G) and by combining the advantages of the two networks.

Description

A kind of wireless gas meter reading system

Technical field

The utility model relates to management, the charge field of coal gas industry, particularly a kind of wireless gas meter reading system.

Background technology

Gas meter copying is an important step of coal gas trade management and charge, and the quality of its management directly influences an economic benefit of enterprises.At present, domestic enterprise adopts manual metering mostly, makes the increase of gas cost like this, and Gas Company's management is difficult to new step, causes the situation of difficult and external Gas Company competition.

The utility model content

At above defective, the utility model has solved problems such as the function singleness that prior art exists, system crash, deadlock, and the gas meter reading system of a kind of low cost, high stability is provided.

For achieving the above object, the utility model is achieved through the following technical solutions: a kind of wireless gas meter reading system is characterized in that: the picture recognition module that comprises the optically detecting module, is electrically connected mutually with described optically detecting module; Described picture recognition module can be got in touch with, communicate by letter with network by GPRS/CDMA;

Described optically detecting module comprises camera lens, imageing sensor, A/D analog to digital converter, the digital signal processor of order electrical connection successively; Described picture recognition module comprises image pretreater, image cutting module, regular module, graph thinning module, feature extraction module, the text-recognition module of order electrical connection successively.

The beneficial effects of the utility model are: the 100-200dpi data dot matrix of obtaining gas meter, the image data amount is few, be applicable to that single-chip microcomputer adopts the numeral of the on-the-spot identification of the method gas meter of artificial intelligence, the back is effectively carried out remote data in conjunction with the advantage of these two kinds of networks and is transmitted according to the characteristics separately of wireless network Zigbee and GPRS/CDMA (3G).

Description of drawings

Fig. 1 is the electric theory diagram of the utility model embodiment;

Fig. 2 is the optically detecting module 1 electric theory diagram among Fig. 1;

Fig. 3 is the picture recognition module 2 electric theory diagrams among Fig. 1;

Fig. 4 is the network topology structure figure of the utility model embodiment.

Embodiment

According to embodiment and accompanying drawing the utility model is described in further detail below.

Shown in Fig. 1,2,3,4, a kind of wireless gas meter reading system, the picture recognition module 2 that comprises optically detecting module 1, is electrically connected mutually with described optically detecting module 1; Described picture recognition module 2 can be got in touch with, communicate by letter with network 4 by GPRS/CDMA3.

Described optically detecting module 1 comprises camera lens 11, imageing sensor 12, A/D analog to digital converter 13, digital signal processor 14; Described camera lens 11, imageing sensor 12, A/D analog to digital converter 13, digital signal processor 14 are electrically connected successively.Referring to Fig. 2.

Described picture recognition module 2 comprises image pretreater 21, image cutting module 22, regular module 23, graph thinning module 24, feature extraction module 25, text-recognition module 26; Described image pretreater 21, image cutting module 22, regular module 23, graph thinning module 24, feature extraction module 25, text-recognition module 26 are electrically connected successively.Referring to Fig. 3.

The communication plan that the utility model can adopt ZigBee and GPRS/CDMA (3G) to combine, network topology structure is referring to Fig. 4.

Principle of work of the present utility model is as follows:

The first step, optically detecting: coal gas instrument video data projects on the image sensor surface by the optical imagery that camera lens (LENS) generates, transfer electric signal then to, through becoming data image signal after A/D (analog to digital conversion) conversion, deliver to processing processing in the digital signal processing chip (DSP needs functions such as image signal processor, jpeg image demoder) again, obtain digital image information; In second step, image recognition: the image information that optical system for collecting collects by the method for computer Recognition image character, identifies the video data of coal gas instrument; The 3rd goes on foot, and mutually combines by wireless network (ZigBee technology) and GPRS/CDMA (3G) and carries out the remote data transmission.

Claims

1. wireless gas meter reading system is characterized in that: the picture recognition module (2) that comprises optically detecting module (1), is electrically connected mutually with described optically detecting module (1); Described picture recognition module (2) can be got in touch with, communicate by letter with network (4) by GPRS/CDMA (3).

2. wireless gas meter reading system according to claim 1 is characterized in that: described optically detecting module (1) comprises camera lens (11), imageing sensor (12), A/D analog to digital converter (13), digital signal processor (14); Described camera lens (11), imageing sensor (12), A/D analog to digital converter (13), digital signal processor (14) are electrically connected successively.