CN2921984Y

CN2921984Y - Wireless meter-reading device

Info

Publication number: CN2921984Y
Application number: CN 200620115328
Authority: CN
Inventors: 孙德君; 陈洪泽; 丁波; 孙松; 李虹; 赵繁荣
Original assignee: 孙德君
Priority date: 2006-05-15
Filing date: 2006-05-15
Publication date: 2007-07-11
Anticipated expiration: 2016-05-15

Abstract

The utility model relates to a wireless meter-reading device, which comprises a remote transmitting water meter, also comprises a data collector connected, at least, with a remote transmitting water meter by the line, a hand transcriber in wireless connection with a plurality of data collectors, a micro printer in wireless connection with the hand transcriber, printing and issuing the user data on the spot, and a PC machine connected with a plurality of hand transcribers by the line. The utility model has the advantages of that: 1. wireless meter reading is realized, when meter reading every time, the meter-reading person does not require going down in the water meter well to carry on meter reading, and can complete by the hand transcriber, with both convenience and safety; 2. the micro printer to print and issue the water use information of the user on the spot is adopted, thereby avoiding the occurrence of man-made mistakes; 3. the function of detecting the non-normal water use information of the water meter is realized, thereby facilitating the water use management of the water management department.

Description

Wireless meter-copy device

Technical field

The utility model relates to field kilowatt meter reading-out systems such as water, electricity, specifically, is a kind of water meter wireless meter-copy device.

Background technology

Along with the development in city, the outstanding problem that the urban water supply cause is faced, as check meter disturb residents, pipeline is aging, water rate is taken over difficulty and steal problem such as water more and more draws attention.The water supply network transformation has been implemented in therefore a lot of cities, water meter goes out the family engineering.Yet along with the enforcement of this engineering, occurred new problem again, that will open cover of water meter chamber when the person of checking meter is checked meter at every turn exactly, checks meter in water meter chamber down, and both inconvenience was also dangerous.In addition, the data on user's water meter document are hand-written for the person of checking meter, and are not only lack of standardization but also occur mistake easily.

Summary of the invention

For addressing the above problem, the utility model provides a kind of can realize the meter reading method safe ready, and the wireless meter-copy device of water meter document standard.

The purpose of this utility model is achieved in that a kind of wireless meter-copy device, and it comprises remote transmitting water meter, it is characterized in that it also comprises:

Data acquisition unit is connected by circuit with a remote transmitting water meter at least;

The write by hand device is with a plurality of data acquisition unit wireless connections;

Mini-printer with the wireless connections of write by hand device, goes out list with the user data field print;

PC is connected by circuit with a plurality of write by hand devices.

Described data acquisition unit comprises: single-chip microcomputer, storer, wireless communication line, power circuit, user's water

The table data input circuit, the state reference voltage circuit, voltage comparator circuit, crystal oscillating circuit, user's data of water meter input circuit comprises that four two four are selected an electronic switching circuit to form 32 electronic switches, wherein import as 24 tunnel user's water meter signals for 24,8 the tunnel as the input of 8 bit address sign indicating numbers, these input signals are added on two voltage comparator circuits and compare with the state reference voltage, several groups of voltages that the voltage divider that the state reference voltage circuit is made up of some resistance produces, expression is normal respectively, short circuit, open circuit, magnetic interference and count status and also comprised these several states in the signal sent here in user's water meter, deliver to single-chip microcomputer through the result of voltage comparator circuit after relatively and carry out computing, send memory stores with one of these several states and cumulative number at last, and send by wireless communication line.

The utility model is primarily aimed at out the family water meter, promptly places the water meter in the water meter chamber to check meter.With user's water

Table changes remote transmitting water meter into, it promptly is the pulse water meter that main body is made with the rotor water gauge, closure, off-state through tongue tube produce pulse, this pulse is formed four kinds of different voltages and is expressed four kinds of different states by after showing interior circuit conversion: i.e. circuit open circuit, line short, magnetic interference, normal metering.Water meter sends one of these four kinds of states to water meter acquiring device, and the table collector that supplies water is judged calculating.By the wireless write by hand device that sends to, the write by hand device through the wireless mini-printer that sends to, prints list with user's water data with data to data acquisition unit in real time with user's data of water meter.The write by hand device can be connected with PC by data line, and the person of checking meter is preserved in the PC this data upload for future reference after having copied table at every turn.Database in the PC can be preserved complete user profile, and can change adjustment at any time, also can the write by hand device be carried out by new standard by downloading in the write by hand device after the PC adjustment when water price changes.

The utility model advantage: 1, realized radio meter register, the person of checking meter is checked meter at every turn and is checked meter in water meter chamber under the Shi Buxu, just can finish by the write by hand machine, not only convenient but also safety; 2, by mini-printer user's water Information Field is printed list, avoid occurring mistake.3, realize detecting the improper water informational function of water meter, be convenient to the management of the use of water of water authority.

Description of drawings:

Fig. 1 is the utility model structured flowchart;

Fig. 2 is a data acquisition unit structure principle chart among the utility model embodiment 1;

Fig. 3 is a data acquisition unit circuit diagram among the utility model embodiment 1;

Fig. 4 is a data acquisition unit circuit diagram among the utility model embodiment 2.

Embodiment:

Below in conjunction with drawings and Examples the utility model specific embodiments is described in detail.

Embodiment 1:

Be at the designed wireless meter-copy device of ordinarily resident's dwelling house water meter.As shown in Figure 1: it comprises remote transmitting water meter; Data acquisition unit is connected by circuit with remote transmitting water meter; The write by hand device is with a plurality of data acquisition unit wireless connections; Mini-printer with the wireless connections of write by hand device, goes out list with the user data field print; PC is connected by circuit with a plurality of write by hand devices.

Described data acquisition unit structure such as Fig. 2, shown in Figure 3, comprising: single-chip microcomputer 1, storer 6, wireless communication line 2, power circuit 3, user's data of water meter input circuit 5, state reference voltage circuit 8, voltage comparator circuit 7, crystal oscillating circuit 4.User's data of water meter input circuit 5 selects an electronic switching circuit to form 32 electronic switches by four two four, wherein import as 24 tunnel user's water meter signals for 24,8 the tunnel as the input of 8 bit address sign indicating numbers, these input signals are added on two voltage comparator circuits 7 and compare with the state reference voltage, several groups of voltages that the voltage divider that state reference voltage circuit 8 is made up of some resistance produces, expression is normal respectively, short circuit, open circuit, magnetic interference and count status, and these several states have also been comprised in the signal of sending here in user's water meter, result after voltage comparator circuit 7 compares delivers to and carries out computing in the single-chip microcomputer 1, send the storer of forming by EEPROM 6 storages one of these several states and cumulative number at last, and send by wireless communication line 2.A water meter acquiring device can be gathered storage 24 family user data simultaneously.After the write by hand device receives these information, CPU processing postedit becomes Word message in the write by hand device, on LCDs, demonstrate the result, after the mini-printer of infrared transmission, reception and special configuration communicates with one another, becoming the Chinese character of certain format to arrange to print data-switching is resident's payment card, directly is inserted on the plug-in card plate by the person of checking meter.Mini-printer adopts the power supply of 7.2V Ni-MH battery, can be powered by the back-up source that data acquisition unit provides when battery electric quantity is not enough, and the resolution of mini-printer is that 8 points/mm speed is 50mm/s, can satisfy instant requirement of printing.Show and print main contents be resident address, floor doorplate, circuit situation (open circuit, short circuit, magnetic interference, normally), this with water number, last time with water number, amount of money number, date, time, the person of checking meter numbering, consulting telephone etc., can carry out data by password in addition operations such as change are set, save as the 2M byte in the work of write by hand device, once can copy 6000 family water meters.Simultaneously, on liquid crystal display, show battery meter so that in time change battery.The person of checking meter copied behind the table at every turn with this secondary data by the write by hand device through connecting line pass in the PC preserve for future reference.Database in the PC can be preserved complete resident's information, and can change adjustment at any time, also can the write by hand device be carried out by new standard by downloading in the write by hand device after the PC adjustment when water price changes.

Wireless communication line 2 in the data acquisition unit is made up of wireless data transmission module and 485 interface circuits, receives the instruction that the write by hand device sends, and sends the water meter information of data acquisition unit.Wireless transmission module adopts GW200 series high-performance, little power consumption figure transmission module, and based on the modulation system of FSK, antinoise and anti-decay property are good, and be reliable and stable.Transparent data transmission can adapt to any standard or off-gauge User Agreement, and the false data (receive promptly send out) of aerial generation is fallen in automatic fitration, and the interface baud rate is 2400bps.For preventing that number from breaking down, kept wire communication mode, wire communication carries out in RS-485 half duplex communication mode, communication speed 2400 bauds, distance≤1.2KM.The effect of power circuit 3 is 1. alternating voltage to be exported the each several part work of 5V DC-voltage supply road after rectification, voltage stabilizing.2. when exchange having a power failure, reserve direct supply (electric current 6V/4AH) work of automaticallying switch at once, output 5V DC voltage makes the circuit operate as normal, guarantees that water meter carries data not lose, and resumes work up to AC network.3. AC power is carried out floating charging to battery during normal operation in normal, makes battery keep sufficient electric weight.

Above-mentioned said data acquisition unit is arranged in the independent collection casing of a residential building Stall, just can checks meter by the write by hand device, and go out list, the conveniently person of checking meter operation by the mini-printer field print.

Embodiment 2:

Embodiment 2 is to be that object is designed with large-scale water meters such as factory, enterprises.Because the industrial business user substantially is to use large-diameter water meter (diameter is more than 25mm), and all in independent ground following table well, greatly dispersed.So the environment that this water meter is checked meter is complicated.Be mainly reflected in 1. from the buildings AC power that is far from, must adopt the DC power supply that carries.2. power consumption is bigger comparatively speaking owing to wireless data transmission module, is not suitable for using the battery long-term work.3. can not use centralized data acquisition unit.Therefore designed the table that catchments, data acquisition unit is the heavy caliber remote transmitting water meter of one, and little power consumption acquisition module and large capacity one-time lithium battery are housed in the table, battery working time can reach more than 3 years.

As shown in Figure 4, data acquisition unit mainly is made up of MCU11, wireless communication line 12, power supply and power sense circuit 13, crystal oscillating circuit 14, user's data of water meter input circuit 15 and programming port 16.Wherein MCU adopts MEGA48, and it is integrated in one each circuit such as single-chip microcomputer, storer, state reference voltage circuit, voltage comparator circuit in embodiment 1 data acquisition unit and components and parts function.Water meter acquiring device links to each other with remote transmitting water meter, carries out data processing, fault judgement.The industrial water meter of each down-hole of data acquisition management, each water meter acquiring device have a unique well address, and scope is from 00001～40000.

Wireless communication line 12 uses an infrared transmitting tube and infrared receiving tube and write by hand device to carry out both-way communication, promptly is that infrared emission and the reception (by modulation and demodulation) by 38KHz realizes communication operation between data acquisition unit and write by hand device.Usual data acquisition unit is to be in the low consumption dormant state, has only interruption can wake its duty up.When activating collector to data acquisition unit emission handshake, the write by hand device begins the entry communication state.The write by hand device adopts prompt precious 8800 write by hand devices to convert.Software is write again in the write by hand device, and the infrared emission of write by hand device and receiving tube are added long lead, guides to the outside and is placed in the stainless-steel tube, when checking meter stainless-steel tube is stretched in the table well and the water meter acquiring device communication.Checking meter preceding and do not knowing the table number of this water meter, the water meter address number of down-hole is being copied up by checking meter for the first time.Communication speed: 1200bps, 8 USRT.

It is the total system power supply that power supply and testing circuit 13:J4 connect 3.6V, a 16.5A h lithium battery, by divider resistance and the inner A/D change-over circuit of MCU11 battery electric quantity is detected simultaneously, and passback gives the write by hand device, by the write by hand device determine to show electric weight how much.

Programming port 16: can also can read the continuous data that is stored among the MCU11 when system is destroyed to program upgrade when needing by this port.

The communication course of work is identical with embodiment 1 between write by hand device and mini-printer and PC, at this slightly.

Write by hand machine and mini-printer technical indicator:

The write by hand device:

Operating voltage: 7.2V

Internal memory: 2M byte FLASH

Show: the full lattice lcd of 160*160 can show 400 characters or 100 Chinese characters;

Power consumption: 30mA when checking meter, 3mA during standby;

PORT COM: RS232, infrared communication mouth;

Speed: 115200bps;

Communication distance: embodiment 1 is not less than 5 meters

2 meters of embodiment 2 infrared communications distances

The maximum amount of gathering: 40,000 families

Printer:

Resolution: 8 points/mm

Print speed: 50mm/s

Printing type: line-type thermal

Print span: 48mm

Claims

1, a kind of wireless meter-copy device, it comprises remote transmitting water meter, it is characterized in that it also comprises:

PC is connected by circuit with a plurality of write by hand devices.

2, meter copying device according to claim 1, it is characterized in that described data acquisition unit comprises: single-chip microcomputer, storer, wireless communication line, power circuit, user's data of water meter input circuit, the state reference voltage circuit, voltage comparator circuit, crystal oscillating circuit, user's data of water meter input circuit comprises that four two four are selected an electronic switching circuit to form 32 electronic switches, wherein import as 24 tunnel user's water meter signals for 24,8 the tunnel as the input of 8 bit address sign indicating numbers, these input signals are added on two voltage comparator circuits and compare with the state reference voltage, several groups of voltages that the voltage divider that the state reference voltage circuit is made up of some resistance produces, expression is normal respectively, short circuit, open circuit, magnetic interference and count status, and these several states have also been comprised in the signal of sending here in user's water meter, deliver to single-chip microcomputer through the result of voltage comparator circuit after relatively and carry out computing, send memory stores with one of these several states and cumulative number at last, and send by wireless communication line.