CN202074996U

CN202074996U - Wireless direct reading intelligent gas meter

Info

Publication number: CN202074996U
Application number: CN2011201637860U
Authority: CN
Inventors: 熊涛; 李克勤; 苟炳勇; 田计划
Original assignee: Chongqing Shancheng Gas Equipment Co Ltd
Current assignee: Chongqing Shancheng Gas Equipment Co Ltd
Priority date: 2011-05-23
Filing date: 2011-05-23
Publication date: 2011-12-14
Anticipated expiration: 2021-05-23

Abstract

A wireless direct reading intelligent gas meter comprises an inlaid module, an outlaid module and a concentrator module. The inlaid module is arranged in a mechanical film type gas meter (a base meter) and separated from the outlaid module, and a low-power consumption characteristic of the inlaid module is utilized to solve the anti-explosion problem. A reed pipe loaded on a dial gauge is used for conducting pulse counting and further obtaining counting values of a base meter counter, or the immediate counting value of each character wheel of the base meter counter can be read through a photoelectric direct reading array circuit, the value is transmitted to the concentrator module through an outlaid module in wireless communication mode, and data is then transmitted to a gas company through a general packet radio service (GPRS) module of the concentrator module. The wireless direct reading intelligent gas meter has the advantages of being accurate in counting and reading, reliable in transmission, long in distance, full in anti-explosion and alarming functions, high in automation degree and the like.

Description

Wireless direct-reading intelligent gas meter

Technical field

The utility model relates to a kind of intelligent gas meter, and particularly it is with the domestic type intelligent gas meter of the automatic teletransmission of destiny.

Background technology

Intelligent gas meter is to add the electronic intelligence module on the basis of mechanical type diaphragm gas meter, a kind of intellectual instrument and meter for automation that will spread out of automatically with destiny through wireless or wire transmission passage; Mechanical type diaphragm gas meter (base table) promotes diaphragm according to gas and makes back and forth movement, counts thereby drive character wheel; On this basis, electronic module carries out step-by-step counting by the tongue tube that is loaded on thousand minute wheels, and then obtains the count value of this base table counter; Perhaps directly read the instant count value of each character wheel of this base table counter by the photo-electronic directly reading array circuit; Should count through wireless or wire transmission passage then and be sent to automatically on the outdoor concentrator (or meter reading instrument); Each meter reading (automanual system) on the meter reading instrument can directly be gathered by civil gas management department, or obtains each meter reading (full-automatic telemetering type) on the concentrator through network (wireless or wired) again.

The core technology of intelligent gas meter is how electronic module reliably obtains the base table count value and should value be sent on the concentrator automatically reliably; In actual production, because the anti-explosion fuel gas requirement should not be used the forceful electric power source, this just has been confined to electronic circuit within the restriction of " low-power consumption "; On the other hand, tongue tube mode power consumption is little, so will have influence on reliability in case lose count pulse; Photo-electronic directly reading mode good reliability, right power consumption is big; Data transmission is also like this, because cable network wiring installation complexity, the cost height is so mostly adopt wireless transmission method at present; Equally, if radio transmitted power is big, then base table is just far away to the effective propagation path of concentrator, i.e. reliability height, but power consumption is also high, and battery is lacked serviceable life.

Summary of the invention

The purpose of this utility model is to have realized a kind of good reliability, the separated wireless direct-reading intelligent gas meter of the power supply energy of Bo watt level power consumption.

The utility model has adopted following scheme for achieving the above object: wireless direct-reading intelligent gas meter comprises built-in module, external module and concentrator module, wherein: aforementioned built-in module comprises photo-electronic directly reading circuit, tongue tube interface circuit, valve circuit, microprocessor and serial port drive, and microprocessor is connected with photo-electronic directly reading circuit, tongue tube interface circuit, valve circuit and serial port drive I respectively; Aforementioned external module comprises memory module, buzz circuit, serial port drive II, tongue tube interface circuit II, valve control, wireless communication module I, microprocessor II, button, LED light and power circuit, and memory module, buzz circuit, serial port drive II, tongue tube interface circuit II, valve control, wireless communication module I, button, LED light and power circuit are received the microprocessor II respectively; Aforementioned concentrator module comprises wireless communication module II, LED lamp, storer, microprocessor III, USB interface and GPRS module, and wireless communication module II, LED lamp, storer, USB interface and GPRS module are received the microprocessor III respectively.

Aforementioned built-in module is connected with control line by data line with external module, realizes data transmission and control; Described external module and concentrator module are finished the transmission of data with the wireless communication mode of automatic route by wireless communication module I and wireless communication module II.

The aforementioned power source circuit comprises transformation module, power isolation module and transforming circuit, and the 220V civil power connects transformation module, power isolation module and transforming circuit in turn, exports 3.3V voltage at last.

Data after the microprocessor III is handled in the aforementioned concentrator module are outwards sent by infinite network by the GPRS module.

The direct-reading array that invests on the base table character wheel is not worked at ordinary times, so base table does not have power consumption substantially, and the power supply of built-in module provides by external module, thereby solved explosion-proof problem.Power supply both can be that the 220V civil power is converted to 3.3V direct current supply, can select standby dry cell power supply for use again.Photo-electronic directly reading and tongue tube counting are also deposited, accuracy and reliability based on photo-electronic directly reading, in conjunction with the real-time of tongue tube step-by-step counting, be aided with suitable intelligent correction algorithm routine again, thereby realize a kind of access method that accurately reads each character wheel reading of base table.

The utility model has the advantages that: counting, accuracy of reading, transmission is reliable, distance, and anti-explosion alarming function is complete, selects the path in the net automatically, and power supply energy is unrestricted.

Description of drawings

The utility model can further specify by the indefiniteness embodiment that accompanying drawing provides.

Fig. 1 is the structured flowchart of wireless direct-reading intelligent gas meter;

Among the figure: the 1-built-in module; 1.1-photo-electronic directly reading circuit; 1.2-tongue tube interface circuit I; 1.3-valve circuit; 1.4-microprocessor I; 1.5-serial port drive I; The external module of 2-; 2.0-power circuit; 2.1-memory module; 2.2-buzz circuit; 2.3-serial port drive II; 2.4-tongue tube interface circuit II; 2.5-valve control; 2.6-wireless communication module I; 2.7-microprocessor II; 2.8-button; 2.9-LED light; The 3-concentrator module; 3.1-wireless communication module II; 3.2-LED lamp; 3.3-storer; 3.4-microprocessor III; 3.5-USB interface; 3.6-GPRS module.

Embodiment

The utility model is described in further detail with reference to the accompanying drawings.

Referring to Fig. 1, a kind of wireless direct-reading intelligent gas meter comprises built-in module 1, external module 2 and concentrator module 3.Wherein: aforementioned built-in module 1 comprises photo-electronic directly reading circuit 1.1, tongue tube interface circuit I 1.2, valve circuit 1.3, microprocessor I 1.4, serial port drive I 1.5, and microprocessor I 1.4 is connected with photo-electronic directly reading circuit 1.1, tongue tube interface circuit I 1.2, valve circuit 1.3, serial port drive I 1.5 respectively; Aforementioned external module 2 comprises memory module 2.1, buzz circuit 2.2, serial port drive II 2.3, tongue tube interface circuit II 2.4, valve control 2.5, wireless communication module I 2.6 microprocessor II 2.7, button 2.8, LED light 2.9, power circuit 2.0, and memory module 2.1, buzz circuit 2.2, serial port drive II 2.3, tongue tube interface circuit II 2.4, valve control 2.5, wireless communication module I 2.6, button 2.8, LED light 2.9, power circuit 2.0 are received microprocessor II 2.7 respectively; Aforementioned concentrator module 3 comprises wireless communication module II 3.1, LED lamp 3.2, storer 3.3, microprocessor III 3.4, USB interface 3.5, GPRS module 3.6, and wireless communication module II 3.1, LED lamp 3.2, storer 3.3, USB interface 3.5, GPRS module 3.6 are received microprocessor III 3.4 respectively.

Aforementioned built-in module 1 is connected with control line 5 by data line 4 with external module 2, realizes data transmission and control; Described external module 2 and concentrator module 3 are finished the transmission of data with wireless communication mode by wireless communication module I 2.6 and wireless communication module II 3.1.

Aforementioned power source circuit 2.0 comprises transformation module, power isolation module and transforming circuit, and the 220V civil power connects transformation module, power isolation module and transforming circuit in turn, exports 3.3V voltage at last.

Data after microprocessor III 3.4 is handled in the aforementioned concentrator module 3 are outwards sent by infinite network by GPRS module 3.6, for example can send to gas company.

Each module can be with reference to using the following chip model of enumerating.Aforementioned microprocessor I 1.4 adopts the STC family chip, microprocessor II 2.7 adopts the PIC16F family chip, microprocessor III 3.4 adopts the PIC family chip, serial port drive I 1.5 and serial port drive II 2.3 all adopt MAX series serial port chip, memory module 2.1 adopts the 24C family chip, and wireless communication module I 2.6 and wireless communication module II all adopt the RFM family chip.USB interface adopts the CP family chip to change.

Claims

1. wireless direct-reading intelligent gas meter is characterized in that: comprise built-in module (1), external module (2) and concentrator module (3), wherein:

Described built-in module (1) comprises photo-electronic directly reading circuit (1.1), tongue tube interface circuit I (1.2), valve circuit (1.3), microprocessor I (1.4) and serial port drive I (1.5), and microprocessor I (1.4) is connected with photo-electronic directly reading circuit (1.1), tongue tube interface circuit I (1.2), valve circuit (1.3) and serial port drive I (1.5) respectively;

Described external module (2) comprises memory module (2.1), buzz circuit (2.2), serial port drive II (2.3), tongue tube interface circuit II (2.4), valve control (2.5), wireless communication module I (2.6), microprocessor II (2.7), button (2.8), LED light (2.9) and power circuit (2.0), memory module (2.1), buzz circuit (2.2), serial port drive II (2.3), tongue tube interface circuit II (2.4), valve control (2.5), wireless communication module I (2.6), button (2.8), LED light (2.9) and power circuit (2.0) are received microprocessor II (2.7) respectively;

Described concentrator module (3) comprises wireless communication module II (3.1), LED lamp (3.2), storer (3.3), microprocessor III (3.4), USB interface (3.5) and GPRS module (3.6), and wireless communication module II (3.1), LED lamp (3.2), storer (3.3), USB interface (3.5) and GPRS module (3.6) are received microprocessor III (3.4) respectively;

Described built-in module (1) is connected with control line (5) by data line (4) with external module (2), realizes data transmission and control; Described external module (2) and concentrator module (3) are finished the transmission of data with wireless communication mode by wireless communication module I (2.6) and wireless communication module II (3.1).

2. wireless direct-reading intelligent gas meter according to claim 1, it is characterized in that: described power circuit (2.0) comprises transformation module, power isolation module and transforming circuit, the 220V civil power connects transformation module, power isolation module and transforming circuit in turn, exports 3.3V voltage at last.

3. wireless direct-reading intelligent gas meter according to claim 1 is characterized in that: the data after microprocessor III (3.4) is handled in the described concentrator module (3) are outwards sent by infinite network by GPRS module (3.6).