CN1815146A

CN1815146A - Wireless long-distance meter-reading system

Info

Publication number: CN1815146A
Application number: CNA2005100238487A
Authority: CN
Inventors: 陈明吉; 卜智勇; 鲍士荣; 宋勇; 周亚宁; 王晓东; 康兰英; 陈学泉; 胡碧君; 赵玖德; 吴迈
Original assignee: Shanghai Waterworks Shibei Technology Co Ltd; Shanghai Research Center for Wireless Communications
Current assignee: Shanghai Waterworks Shibei Technology Co Ltd; Shanghai Research Center for Wireless Communications
Priority date: 2005-02-05
Filing date: 2005-02-05
Publication date: 2006-08-09

Abstract

Present invention discloses a wireless long-distance meter reading system. It features including all classes of meter, floor concentrator, storey concentrator, community meter data transshipment management device, handset and account centre, wherein said community meter data transshipment management device including data transshipment manager, receiving terminal and system set client-side, wireless transmission adopted in above mentioned devices, wired network transmission signal adopted between community meter data transshipment management device data transshipment manager and receiving terminal data line data transmission adopted between receiving terminal and account centre, and data transshipment manager and system set client-side. Said system combines wireless and cable communication mode, adopting multilayer wireless transmission structure receiving data, summarizing data then using wired network reporting data, being convenient meter reading and user payment, and system facility maintenance.

Description

Wireless remote meter reading system

Technical Field

The invention relates to a remote wireless meter reading system, in particular to a remote wireless meter reading system which is applied in a community, and data are uploaded layer by layer through a multilayer wireless network and then transmitted to an accounting center in a wired mode through a community meter data transfer management device.

Background

Along with the development of urban construction, the scale of residential communities is gradually enlarged, meter reading gradually becomes a prominent problem, the traditional meter reading mode is carried out by a user and a room, the main defects are that the time of the user and a charging department is difficult to coordinate, time and labor are wasted, potential safety hazards are brought, and therefore the development of an automatic meter reading system is difficult, and in different schemes of the automatic meter reading system, the wireless transmission mode is particularly emphasized due to the advantages of no need of wiring and simplicity and convenience in installation.

In the prior art, a wireless meter reading system such as Chinese patent No. 96202204.7 discloses an automatic meter reading device for gas, electricity and meters for multiple users, wherein a user data acquisition unit is arranged at the rotating position of each user meter, and a detection device is used for converting a rotating signal into an electric pulse signal and performing accumulated counting on the pulse signal. And then, collecting and connecting each data acquisition unit to a data centralized processing unit, and reading and resetting the accumulated result of each data acquisition unit by controlling the data centralized processing unit by the infrared meter reader. The infrared meter reader outputs the read data to other devices through an output interface. The technology adopts an infrared mode to transmit data, and has the defects of short transmission distance and unstable transmission.

In chinese patent No. 02200581.1, an automatic meter reading system using telephone line is disclosed, which comprises a user side and a management side, wherein the user side is composed of a meter, a collector and a data processor, the meter transmits data to the collector, the collector and the data processor transmit data in a wireless manner, the wireless transmission frequency is about 400MHz, and the data processor and the management side transmit data through the telephone line, thereby realizing automatic meter reading. The system has the disadvantage that the wireless mode is only limited to the user end range, and the user is required to have the hardware condition of the telephone line.

If the long-distance data transmission is realized by utilizing a spatial wireless channel, the system is simple and convenient, the existing line is not required to be changed, the transmission frequency band is wide, the communication distance is long, (generally dozens of kilometers can be extended to a longer distance through a relay station), the wiring, meter reading and home entering are avoided, and the system has important practical significance for old city reconstruction, but the system faces the problem that: the wireless data transmission has the problems that the signal transmission is unstable under the action of reflection, absorption and the like of a building on radio signals, in addition, the installation position of a meter, space interference and the like also have great influence on the stable work of the wireless data transmission, and simultaneously, the power consumption and the like also exist.

Disclosure of Invention

The invention is a long-distance wireless meter reading system which combines wireless and wired communication modes in short distance and takes a community as a basic application object, which is developed for overcoming the defects in the prior wireless meter reading system.

The technical scheme adopted by the invention is as follows:

the wireless remote meter reading system is characterized by comprising various meters arranged in a user room, floor concentrators arranged on each floor of each building, the building concentrator arranged on each building, a community meter data transfer management device arranged in a community management center, a handset and an accounting center arranged in a jurisdiction area; the community meter data transfer management device comprises a data transfer manager, a receiving terminal and a system setting client; wireless transmission signals are adopted among data transfer managers in various meters, floor concentrators, building concentrators and community meter data transfer management devices and handsets, and wired network transmission signals are adopted between the data transfer managers of the community meter data transfer management devices and receiving terminals; data lines are adopted between the receiving terminal and the accounting center and between the data transfer manager and the system setting client to transmit data.

According to the wireless remote meter reading system, the two ends of the wired network are provided with the firewall.

The wireless remote meter reading system is characterized in that the meter is a wireless meter and comprises a pulse meter body, a power supply for supplying the pulse meter to work and a display screen arranged on the front side of the pulse meter body; the radio frequency transceiver also comprises a data acquisition end, a meter data acquisition and processing unit, a radio frequency transceiver unit and an antenna; the data acquisition end is connected with the output end of the meter, the output end of the data acquisition end is connected with the input end of the meter data acquisition and processing unit, the meter data acquisition and processing unit is bidirectionally connected with the radio frequency transceiving unit, and the radio frequency transceiving unit transmits and receives wireless signals through an antenna.

Above-mentioned remote wireless meter reading system, wherein, floor concentrator include: the radio frequency transceiver comprises a power supply unit, an interface unit, a control unit, a radio frequency transceiving unit and a clock unit;

the power supply unit is used for converting alternating current into direct current and providing working power supplies for the interface unit, the control unit and the radio frequency transceiving unit;

the control unit receives data transmitted from each floor in the building through the interface unit, and the data are transmitted to the community meter data transfer management device through the radio frequency receiving and transmitting unit after data processing;

the control unit communicates with the radio frequency transceiver unit through an SPI bus and through I²The C bus is communicated with the RTC clock unit.

The remote wireless meter reading system, wherein the building concentrator comprises: the radio frequency transceiver comprises a power supply unit, an interface unit, a control unit, a radio frequency transceiving unit and a clock unit;

The remote wireless meter reading system, wherein the data transfer manager in the community meter data transfer management device comprises: the system comprises a system management module, a network service/monitoring module, a wireless network parameter management module, a wireless communication function module, a data analysis module, a building concentrator abnormity inspection module, a data sending module and a wireless transceiving module;

the other functional modules are used for centralized control and management;

the network service/monitoring module establishes bidirectional contact with a receiving terminal server through VPN;

the wireless network parameter management module receives the standard time and other information from the network service/monitoring module and provides the information to the wireless communication function module;

the data wire of the wireless communication functional module is communicated with the wireless transceiving module to exchange data, and wireless data transmission between the wireless communication functional module and the building concentrator is realized;

the data analysis module is used for analyzing the data packet structure and extracting corresponding data to store in a backup database;

the abnormal detection module of the building concentrator is used for detecting data in the database at regular time and transmitting the working condition of the building concentrator to the data transmission module;

the data sending module is used for transmitting the data packet to the network service/monitoring module and transmitting the data packet to the receiving terminal server through the wired network;

the wireless receiving and transmitting module is used for receiving and transmitting wireless signals.

In the above remote wireless meter reading system, the receiving terminal server in the community meter data transfer management device includes: the device comprises a network service module, a data receiving module, an equipment abnormity alarm module and a command issuing module;

the network service module is used for establishing bidirectional contact with the data transfer manager through a wired network;

the data receiving module is used for receiving information transmitted by the data transfer manager, if the data belongs to normal data, the data is stored in a data file, and if the data belongs to equipment abnormal information, the data is sent to the equipment abnormal alarm module;

the equipment abnormity alarm module is used for processing equipment abnormity information;

the command issuing module is used for encapsulating a specific command into a message according to a protocol, transmitting the message into the network service module and sending the message to the corresponding data transfer manager.

In the remote wireless meter reading system, the system setting client in the community meter data transfer management device is composed of a computer, and is used for inquiring user data and setting system parameters through a WEB browser.

The remote wireless meter reading system, wherein the handset comprises: the keyboard and the display screen are arranged on a panel of the shell, the control circuit is arranged in the shell, and the working power supply is used for providing work of each circuit; the control circuit comprises a keyboard circuit electrically connected with the keyboard, a liquid crystal module for driving the display screen to display, and: a central control processing unit, a radio frequency transceiver unit, an antenna, a serial port module, a real-time clock circuit and a reset circuit; the input end of the central control processing unit is respectively connected with the output ends of the real-time clock circuit and the reset circuit, the central control processing unit is also respectively connected with the radio frequency transceiving unit, the serial port module and the keyboard circuit in a bidirectional way, and the central control processing unit is connected with the liquid crystal module; the radio frequency transceiving unit is used for transceiving wireless signals through an antenna; and the serial port module establishes communication with each terminal of the remote wireless meter reading system.

Due to the adoption of the technical scheme, the invention can achieve the following technical effects:

1. monitoring water, gas and electricity consumption in real time:

data are collected once at intervals of a period of time to the remote meter, and the water consumption during calculation can be realized:

monitoring the usage amount of each table in real time;

setting an important table, and monitoring the using amount of the important table in real time;

and monitoring the total water, gas and electricity consumption of the community in real time.

2. Remote meter abnormity judgment:

for each table, an abnormal table database is established, judgment is carried out according to continuously collected data, the abnormal condition of the table can be judged, the abnormal table is reported, and information is provided for table management.

3. Analyzing the law of water, gas and electricity consumption:

the analysis is carried out to the water use, gas use, power consumption data of remote table, includes:

analysis of "time-dose" profiles for the highest/low/average day, and

analysis of "daily-dose" for the highest/low/average month.

4. Providing a GIS system and a pipe network modeling data interface:

the cell is used as a node on a company water, electricity and gas supply pipe network, and the system can provide node flow data of the node for a GIS system and a pipe network modeling.

5. The remote meter has automatic meter reading and charging:

when the meter is read every month, the real-time data of the meter is read, and the remote meter reading system is connected with the business charging system through an interface with the business charging system, so that automatic meter reading and billing are realized.

Drawings

The specific characteristic features of the present invention are further described by the following embodiments and the drawings thereof.

FIG. 1 is a schematic diagram of the overall system architecture of the present invention.

FIG. 2 is a schematic circuit diagram of the watch of the present invention.

Fig. 3 is an electrical block diagram of a meter data processing unit of the meter of the present invention.

FIG. 4 is a schematic flow chart of the operation of the watch according to the present invention.

Figure 5 is a schematic diagram of the electrical circuit configuration of the floor concentrator of the present invention.

Figure 6 is an electrical block diagram of the control unit in the floor concentrator of the present invention.

Figure 7 is a schematic flow diagram of the operation of the floor concentrator of the present invention.

Fig. 8 is a schematic diagram of the circuit configuration of the building concentrator of the present invention.

Fig. 9 is an electrical block diagram of a control unit in the building concentrator of the present invention.

Fig. 10 is a schematic work flow diagram of the building multi-span collector of the invention.

Fig. 11 is an electrical block diagram of the community meter data relay management device according to the present invention.

Fig. 12 is a schematic workflow diagram of the community table data transit management apparatus according to the present invention.

Fig. 13 is a schematic external view of the hand piece of the present invention.

Fig. 14 is a schematic circuit diagram of the handset of the present invention.

Fig. 15 is an electrical block diagram of a central processing control unit in the handset of the present invention.

Fig. 16 is a schematic workflow diagram of the handset of the present invention.

FIG. 17 is a flow chart of the working principle of the wireless remote meter reading system of the present invention.

Detailed Description

Please refer to fig. 1, which is a schematic structural diagram of a wireless remote meter reading system. The wireless remote meter reading system 100 comprises various meters 1 arranged in a user room, a floor concentrator 2 arranged on each floor of each building, a building concentrator 3 arranged on each building, a community meter data transfer management device 4 arranged in a community management center, a handset 5 and an accounting center 6 for managing the use cost of the meters in the jurisdiction. The various meters comprise gas meters, water meters, electric meters and the like which are used by users in large quantities at present. The community meter data relay management device 4 includes a data relay manager 41, a receiving terminal server 42 and a system setting client 43; signals are transmitted among various meters 1, floor concentrators 2, building concentrators 3, community meter data transfer management devices 4 and handsets 5 in a wireless communication mode A; a wired network B is adopted between a data transfer manager 41 in the community meter data transfer management device 4 and a receiving terminal server 42 for signal transmission; the data transmission between the receiving terminal server 42 and the accounting center 6, and between the data relay manager 41 and the system setting client 43 employs data lines. A firewall 44 is provided at each end of the wired network B.

Network intrusion detection is adopted in the internal network and the external network of the system center node, real-time detection is provided, and tracking, analysis, audit and necessary response are provided for network attack. The network intrusion detection system consists of a security detection engine and a security control center, wherein the security detection engine is responsible for carrying out real-time automatic attack identification and response on data streams in the network; the safety control center is responsible for managing and configuring the intrusion detection system of the whole network. The intrusion detection system can interact with the firewall, and can automatically control the firewall and cut off illegal network connection when finding network intrusion behaviors through corresponding setting, so that the safety of the intranet is protected.

Please refer to fig. 2, which is a schematic structural diagram of a wireless meter according to the present invention. The wireless meter 1 comprises a meter data acquisition and processing unit 11, a radio frequency transceiving unit 12, a voltage monitoring chip 13, a radio frequency switch 14, a light emitting diode 15, a reset circuit 16, a TTL serial port communication module 17 and a data acquisition terminal 18.

Wherein,

the meter data acquisition terminal 18 obtains a pulse signal from the pulse meter and transmits the pulse signal to the meter data acquisition processing unit 11. The meter data acquisition and processing unit 11 is formed by a CPU single chip microcomputer, for example, of which the model is MSP430F 149; the meter data acquisition and processing unit 11 acquires meter pulses and reports accumulated data to the floor concentrator in a wireless manner according to the time slices of the dynamic application. Meanwhile, the meter data acquisition and processing unit 11 can convert the pulse signals into electric data to be stored for other terminals to copy.

The voltage control chip 13 is connected to the meter data acquisition and processing unit 11, and the model of the voltage control chip is, for example, R3111H301C chip, when the input voltage is lower than 3.0V, the low level is output, and the signal is used as weak current detection in the circuit board.

The reset circuit 16 is connected with the meter data acquisition and processing unit 11 and provides a reset key for activating the connection of the meter and the floor concentrator, performing function detection and indicating the working state by a Light Emitting Diode (LED).

The TTL serial communication 17 is bidirectionally connected to the meter data acquisition and processing unit 11, and is used for being communicatively connected to the handset to set parameters of the meter module and the like.

The light emitting diode 15 is connected with the meter data acquisition and processing unit 11 and is used at the time of testing to provide visual signals.

The meter data acquisition and processing unit 11 is connected with the radio frequency transceiver module 12 in two directions. The radio frequency transceiver module 12 employs a wireless transceiver chip, for example, model CC 20. In the embodiment, the programming CC20 is a GFSK modulated signal, the transmission rate is 4800Baud, and the operating band is 434.0MHZ to 434.5 MHZ.

The rf switch 14 is connected to the rf transceiver module 12, and the rf switch 14 uses, for example, a chip HMC154S 8.

Please refer to fig. 3. The meter data acquisition and processing module 11 in the wireless meter of the invention comprises the following components according to the functional division: the system comprises a system management module 111, a data acquisition module 112, a data analysis module 113, a data storage module 114, a wireless communication module 115, an interrupt processing module 116, a timer module 117, a serial communication module 118, a command analysis module 119, a parameter processing module 200, a parameter storage module 201 and a wireless test module 202, wherein:

the system management module is used for coordinating and controlling the whole process of the system, the scheduling of each functional unit and the low-power consumption control.

The data acquisition module is used for acquiring the pulse data of the meter.

The interrupt processing module is used for scheduling the data acquisition module to inform the system management module in an interrupt mode so as to ensure the accurate measurement of the water quantity.

The data analysis module is used for analyzing and processing the collected water volume pulse, judging boundary crossing, alarming and accumulating water volume.

And the data storage module is used for carrying out data combination and storage on the obtained water quantity data according to the existing format.

The wireless communication module is used for the wireless communication module to take charge of the receiving and sending of wireless data; and the water quantity and the alarm data are packaged and sent, the parameter setting data are received, the wireless signal test data are sent and received, and the like.

The timer module is used for setting according to system parameters, and the timer module calls the data storage module and the wireless communication module to send water volume and alarm data at regular time.

The serial port communication module is used for communicating with the handset and sending and receiving serial port data.

The command analysis module is used for analyzing the handset command and dividing functions according to the protocol.

The parameter processing module is used for receiving a parameter setting command of the handset and modifying corresponding parameters of the system. And simultaneously, responding to a parameter reading instruction of the handset and returning the parameters and the state of the system.

The parameter storage module is used for storing the set parameters.

The wireless test module is used for responding to the wireless test of the handset and returning parameters such as field intensity and the like.

The meter data acquisition and processing unit is connected with a meter and can complete data acquisition, transmission, alarm, function test, parameter setting and reading. The unit normally operates in a low power consumption state.

When the clock reaches the set reporting time, the meter data acquisition and processing unit reports data, the reported data comprises alarm data and the consumption data displayed by the meter, and the consumption change process from the last reported data to the current time is recorded in detail.

If the data reporting fails, the meter data acquisition and processing unit tries to connect again after an interval of 12 hours (half a period).

After the communication is finished, under two conditions, the meter data acquisition and processing unit can enter a bottom power consumption working state, which is respectively as follows:

firstly, reporting time is up, a timer is interrupted, a program quits low power consumption, and a report data flag is juxtaposed to be true;

secondly, through serial port communication, the handset setting module enters a test mode (in the test mode, a program waits for wireless data and responds to a test signal, and through the mode, the handset can test the transmitting power and the sensitivity of the relevant module).

The meter program inquires the state of the water pulse signal in the timer interruption, stores the water pulse value according to the meter reading interval, and reports the water data in the buffer area to the floor concentrator after the reporting time is reached.

The meter module collects water volume pulses and records the values according to set meter reading interval parameters, but the data are not sent out every time, but are sent at a certain time every day, so that the reported data are accumulated data.

The meters exchange data with the floor concentrators in respective time slices. The time slice refers to a time sequence for setting the reporting sequence of each meter. The time slice of the watch is not fixed initially but is dynamically assigned to it by the floor concentrator when the watch is first brought into communication with the floor concentrator at the time of installation.

Please refer to fig. 4, which is a flowchart illustrating an embodiment of data collection performed by the meter in combination with the water meter according to the present invention.

The work flow of the water meter can be divided into two parts according to the function, fig. 4a is the collection, storage and report of the water quantity, and fig. 4b is the system setting and testing function.

a. And collecting, storing and reporting the water quantity. In this process, the process is carried out,

1-1 water volume pulse is firstly collected by a meter module in an interrupted form;

1-2, sending the interruption information of the pulse to a pulse processing program, and finishing the analysis and accumulation of the pulse information by the pulse processing program;

1-3, storing the water quantity data processed in the system in a cache by a temporary data storage program;

1-4, calling a data combination program for the water quantity data at regular time intervals by a timer program according to the requirements of system parameters, and packaging the water quantity data according to a fixed format;

the 1-5 timer program calls the data analysis/packaging program at fixed time every day according to the requirement of system parameters, and sends out the alarm and water volume data obtained by analysis through wireless.

b. And (5) setting and testing a system. In this process, the process is carried out,

2-1, the handset firstly sets data to the water meter in the wireless meter of the invention through a serial port;

2-2, the water meter receives the data, analyzes the command and respectively sends the data to different functional modules for parameter setting, parameter reading, wireless signal testing and the like for processing;

2-3 in the parameter setting program, the meter data acquisition processing unit receives the parameter command, modifies the corresponding parameter and finally stores the parameter into the fixed cache of the system; initializing the inside of the system to adapt to the new parameter configuration;

2-4, if the received command is a read information command, the meter module responds to the corresponding parameter requirement, arranges the internal state information, packs the data and returns the data;

2-5 in the signal test data program, the water meter opens the wireless test function, responds the wireless test of the handset, and returns parameters such as field intensity and the like.

Please refer to fig. 5, which is a schematic structural diagram of the floor concentrator of the present invention. The floor concentrator 2 comprises: a power supply unit 21, an interface unit 22, a control unit 23, a radio frequency transceiver unit 24, and a clock unit 25. The power supply unit 21 includes an AC/DC converter 211 and a DC/DC power supply module 212, and is used for converting AC power into DC power and supplying operating power to circuits such as an interface unit, a control unit, and a radio frequency transceiver unit. The real-time clock device further comprises an RTC backup battery 213, when the alternating current is cut off, the power supply is switched to the backup battery 213 automatically, and the RTC real-time clock unit 25 is powered by the backup battery.

The control unit 23 receives data from the buildings via the interface unitData sent from the floors are processed and then transmitted to a community meter data transfer management device through a radio frequency transceiving unit; the control unit communicates with the radio frequency transceiver unit via SPI bus via I²The C bus is communicated with the RTC clock unit. The control unit 23 may be constituted by a CPU single chip microcomputer.

The rf transceiver unit 24 includes an rf chip 241, a power amplifier 242, an rf transceiver switch 243 and an antenna 244, which are connected in sequence. When the rf transceiver switch 243 is switched to the receiving state: the radio frequency chip sends data of each gauge in the floor to the control unit through the SPI interface, and the control unit processes the received data (classified storage, packaging and the like); when the radio frequency transceiving switch is switched to a transmitting state: the floor concentrator sets parameters to each meter. And after the setting is finished, the radio frequency transceiving switch is switched to be in a receiving state.

If the time for acquiring the parameters of the floors is up, the clock unit sends an interruption request to the control unit, the radio frequency receiving and sending switch is switched to a sending state, the obtained parameter data packet is sent to the building concentrator, and after the sending is finished, the radio frequency receiving and sending switch is switched to a receiving state, the setting of the parameters returned by the building concentrator is waited, and the parameters are stored in a classified mode.

If the time for the floor to report the data is up, the clock unit sends an interruption request to the control unit, the radio frequency transceiving switch is switched to a sending state, and the control unit packages the collected meter usage data and alarm information in groups and reports the data to the building concentrator; and after the report is finished, the radio frequency transceiving switch is switched to be in a receiving state, and data continues to be received.

Please refer to fig. 6. The control unit 23 of the floor concentrator comprises: the device comprises an RTC clock module 2301, a parameter application module 2302, a data combination packaging module 2303, a data forwarding module 2304, a data storage module 2305, a data packet splitting module 2306, a data receiving buffer module 2307, a parameter setting module 2308, a parameter storage module 2309, a command analyzing module 2310, a wireless test module 2311, a wireless communication module 2312, a serial communication module 2313, a power control module 2314, a data sending buffer module 2315 and an antenna 2316. The RTC clock module is respectively connected with the parameter application module and the data forwarding module in two directions; the data forwarding module, the data storage module, the data packet splitting module and the data receiving and caching module are sequentially and bidirectionally connected; the data packet splitting module is respectively connected with the parameter storage module and the command analysis module in a bidirectional way; the parameter setting module, the parameter storage module, the command analysis module and the wireless test module are sequentially connected in a bidirectional way; the output end of the command analysis module is connected with the input end of the parameter setting module; the output ends of the parameter application module, the data forwarding module and the parameter setting module are respectively connected with the input end of the data combination packaging module; the output ends of the wireless test module and the data combination packaging module are respectively connected with the input end of the data sending and caching module; the output end of the data sending and caching module is respectively connected with the input ends of the serial port communication module and the wireless communication module; the output ends of the serial port communication module and the wireless communication module are connected with the input end of the data receiving and caching module; the output end of the power control module is connected with the input end of the wireless communication module; the wireless communication module is bidirectionally connected with the antenna.

When the wireless module works, the floor concentrator puts a frame of data received from the serial port into the serial port buffer area, and puts data received from the wireless module into the radio frequency buffer area. If the received data is the data reported by the meter, the floor concentrator stores the data of the meter in a classified mode and sets parameters to the meter through the radio frequency module. If the data of the building concentrator is received, the floor concentrator stores the parameters set by the building concentrator and returns a response to the building concentrator through the radio frequency module. If the data of the handset is received, then:

1) and if the data is received from the serial port, returning corresponding data from the serial port.

2) And if the data is received from the radio frequency module, returning corresponding data from the radio frequency module.

3. When the floor concentrator acquires the parameters from the building concentrator, the RTC real-time clock sends a signal to the floor concentrator to acquire the parameters from the building concentrator through the radio frequency module.

When the floor concentrator reports data to the building concentrator, the RTC real-time clock sends out signals, and the floor concentrator packages and uploads the collected meter data and alarm information to the building concentrator through the radio frequency module.

The floor concentrator can also set own parameters such as ID (identification) number of a meter, the ID number of the floor, parameter acquisition time, reporting time and the like through the RS232 serial port of the handset, and can also transmit the parameters to the handset through the RS232 serial port. The floor concentrator is in wireless communication with the handset, and the signal intensity of the floor concentrator can be tested, so that the installation position of the floor concentrator is determined; parameters may also be transmitted to the handset over the air.

Please refer to fig. 7. Taking a water meter reading as an example, a work flow chart of a floor concentrator is divided into two parts, namely collection and reporting of data of the floor concentrator and parameter application (data uplink), and parameter setting, reading and installation testing (data downlink) of the floor concentrator. The working process of the floor concentrator comprises the following steps:

a. collecting and reporting data of the floor concentrator and applying parameters (data uplink):

1. the floor concentrator collects data (water quantity information and alarm information) of a plurality of water meters, and the data are subjected to error checking, screening and classified storage. If the received data is the water meter data, sorting and classifying the water meter data, and then storing the data; when the time of RTC reported data is up, the floor concentrator packs the data, reports the data in groups, and sends the data to the floor concentrator through wireless transmission.

2. The alarm information of the water meter is received, the alarm information is stored in a classified mode, when the RTC reports the time of data, the floor concentrator packs and reports the alarm information, and the alarm information is transmitted to the floor concentrator through wireless transmission.

b. Parameter setting, reading and installation test of floor concentrators (data down):

the floor concentrator receives data of the handset through a serial port, receives data of the handset and the floor concentrator through wireless, analyzes through a command, and processes according to the following steps:

1. parameter setting

The floor concentrator receives the parameter settings of the handset and the floor concentrator, classifies the parameters and stores the parameters.

2. Parameter reading

The floor concentrator receives a parameter reading command of the handset, packages the parameters read by the handset, and wirelessly transmits the parameters if the parameters are received wirelessly; and if the data is received through the serial port, the data is sent through the serial port.

3. Installation testing

And the floor concentrator receives an installation test command of the handset, packages the test data and sends the test data to the handset through wireless transmission.

Please refer to fig. 8. This is a schematic structural view of the building concentrator 3 of the present invention. The building concentrator 3 of the present invention comprises: a power unit 31, an interface unit 32, a control unit 33, a radio frequency transceiver unit 34, and a clock unit 35. The power supply unit 31 is composed of a power supply management module 311 and a backup power supply module 312, wherein the power supply management module comprises an AC/DC module and a DC/DC module, and provides required power supply for each module; and when the external power supply is powered off, the backup power supply module is switched rapidly to supply power to the RTC clock unit.

The control unit 33 receives meter data transmitted from each floor in the building through the interface unit 32, transmits the data processed data to the control unit 33 of the community meter data transfer management device 4 through the radio frequency transceiver unit 34, transmits data signals through the SPI bus and the radio frequency transceiver unit, and transmits the data signals through the I²The C bus and the RTC clock unit transmit signals.

The rf transceiver unit 34 is composed of an rf chip 341, a power amplifier 342, and an antenna 343, which are connected in sequence.

In a specific embodiment, the power supply part consists of an AC input, an AC/DC converter and a DC-DC converter. The power supply input is 220VAC, 5VDC is output through an AC/DC converter, 5V can be converted into 3.3V through DC-DC conversion, and a UU3 chip can be adopted for the DC-DC conversion.

The control unit can be formed by a CPU singlechip, and the CPU singlechip can adopt a MSP430F149 chip with a low-power consumption 16-bit RSIC structure. The CPU single chip is communicated with the radio frequency chip through an SPI bus and is communicated with the radio frequency chip through an I²The C bus is communicated with the RTC clock chip. When the RTC clock chip works normally, the power supply of the system is used for supplying power, and the standby battery supplies power after the power supply is cut off. This function is implemented by the UU2 chip.

The radio frequency chip adopts a CC20 chip, the power amplifier adopts an RF2117 chip, and the radio frequency chip works at 433MZH and is GFSK modulation.

Please refer to fig. 9. The control unit 33 in the building concentrator of the remote wireless meter reading system of the present invention comprises: the RTC clock module 3301, the parameter application module 3302, the wireless communication module 3303, the serial communication module 3304, the data receiving buffer module 3305, the data packet splitting module 3306, the data storage module 3307, the data forwarding module 3308, the data combination and packaging module 3309, the wireless test module 3310, the command parsing module 3312, the parameter storage module 3313, the parameter setting module 3314, the power control module 3315, the data sending buffer module 3316, the parameter automatic routing module 3317, the relay forwarding module 3318, and the antenna 3319.

The RTC clock module 3301 is respectively connected with the parameter application module 3302 and the data forwarding module 3308 in two directions; the data forwarding module sets data forwarding time to the RTC clock module, and when the data forwarding time is up, the RTC clock module sends a data forwarding signal to the data forwarding module; the parameter application module sets the time of parameter application to the RTC clock module, and when the time of parameter application is up, the RTC clock module sends a signal of parameter application to the parameter application module.

The output ends of the parameter application module 3302, the relay forwarding module 3318 and the data forwarding module 3308 are respectively connected with the input end of the data combination packaging module 3309; the data forwarding module is used for forwarding the data to be forwarded, which are collected in the data storage area; when a data forwarding application signal sent by the RTC clock module is received, the data forwarding module collects data to be forwarded in the data storage area and transmits the data to the data combination packaging module; the relay forwarding module completes the relay function; and the data combination packaging module is used for grouping and packaging the data transmitted by the parameter application module, the data forwarding module and the parameter storage module according to a protocol and storing the data in the data sending and caching module.

The data forwarding module 3308, the data storage module 3313, the packet splitting module 3306, and the data receiving buffer module 3305 are connected in sequence and in a bidirectional manner; the packet splitting module 3306 is connected to the relay forwarding module 3318, the parameter automatic routing module 3317, and the command parsing module 3312 in two ways; the data packet splitting module unpacks and splits the data in the data receiving cache region to separate out data and commands; and the data storage module stores the data separated by the data packet splitting module in a classified manner. The data receiving and caching module stores the data received by the wireless communication module and the serial communication module in a caching area.

The parameter storage module 3313, the parameter automatic routing module 3317, the command parsing module 3312, and the wireless test module 3311 are connected in sequence and bi-directionally; the output end of the parameter automatic routing module 3317 is connected to the input end of the parameter setting module 3314; the command analysis module is used for determining whether to perform wireless test, parameter storage or parameter setting according to the analyzed command; the parameter storage module completes classified storage of parameters; the parameter setting module completes the parameter setting of the meter; the parameter automatic routing module automatically sequences and classifies the parameters of the multiple multilevel subordinate devices.

The output ends of the wireless test module 3311 and the data combination packing module 3309 are respectively connected with the input end of the data transmission cache module 3316; the wireless test module is used for receiving and sending test data; if the wireless test module receives the wireless test command sent by the command analysis module, the wireless test module packs and stores the test data to the data sending cache module.

The output end of the data sending cache module 3316 is connected with the input ends of the serial port communication module 3304 and the wireless communication module 333 respectively; the data sending and caching module caches the data of the data combination and packaging module.

The output ends of the serial port communication module 3304 and the wireless communication module 3303 are connected with the input end of the data receiving cache module 3305; the wireless communication module completes wireless communication with the meter, the building concentrator and the handset, and completes modulation and demodulation of data; the serial port communication module completes wired communication with the handset, including setting, modifying and reading parameters.

An output terminal of the power control module 3315 is connected to an input terminal of the wireless communication module 3313; the power control module adjusts the radio frequency output signal power of the wireless communication module according to the received signal strength RSSI value.

The antenna completes the coupling and transmission of the radio frequency signal, and the wireless communication module 3303 is connected with the antenna 3319 in both directions.

Please refer to fig. 10, which is a flow chart of the building concentrator of the present invention, and the flow chart is divided into three parts: a. collecting and reporting data of the multi-span concentrator and applying for parameters (data uplink); b. setting, reading and installing test parameters of the building concentrator (data downlink); and c, the relay function of the building concentrator.

a. Collecting and reporting data of the building concentrator and applying parameters (data uplink):

the building concentrator collects data output by a plurality of floor concentrators, and the data are subjected to error checking, screening and classified storage:

1. if the received data is the data of the floor concentrator, sorting and classifying the data of the floor concentrator, and then storing the data; when the time of reporting data by the RTC is up, the data of the floor concentrator is packaged, grouped and reported, and sent to the community meter data transfer management device through wireless transmission.

2. If the alarm information of the floor concentrator is received, the alarm information is stored in a classified mode, when the time for reporting data by the RTC is up, the alarm information is grouped, packaged and reported, and the alarm information is transmitted to the community meter data transfer management device through wireless transmission.

b. Parameter setting, reading and installation test of building concentrator (data down)

The building concentrator receives data of the handset through a serial port, receives data of the handset and the community meter data transfer management device through wireless, analyzes through a command, and processes according to the following description:

1. parameter setting

The building concentrator receives parameter settings of the handset and the community meter data transfer management device, classifies the parameters, searches paths of the parameters, and then classifies and stores the parameters in a partition mode.

2. Parameter reading

The building concentrator receives a parameter reading command of the handset, packages the read parameters of the handset, and transmits the parameters in a wireless manner if the parameters are received in a wireless manner; and if the data is received through the serial port, the data is sent through the serial port.

3. Installation testing

The building concentrator receives the installation test command of the handset, packages the test data and sends the test data to the handset through wireless transmission.

c. Relay function of building concentrator

When the building concentrator is set as a repeater, the data interaction with the handset is as described above. The relay function for the upper and lower devices is as follows:

1. and receiving the data of the lower-level floor concentrator, screening out the data, automatically searching a path for sending the data upwards, and packaging and sending the data (ascending).

2. And receiving data of the superior community table data transfer management device, screening out the data, automatically searching a path for sending the data downwards, and packaging and sending (descending) the data.

The community meter data transfer management device 4 is an intermediate part connected between a building concentrator and an accounting center, and realizes specific functions of data collection of the building concentrator, data report of the data collection to the accounting center, command transmission to the accounting center and the like.

Please refer to fig. 1. The community meter data relay management device 4 includes a data relay manager 41, a receiving terminal server 42 and a system setting client 43; a wired network B is adopted between a data transfer manager 41 in the community meter data transfer management device 4 and a receiving terminal server 42 for signal transmission; the data transmission between the receiving terminal server 42 and the accounting center 6, and between the data relay manager 41 and the system setting client 43 employs data lines. A firewall 44 is provided at each end of the wired network B.

Please refer to fig. 11. The data relay manager 41 in the community meter data relay management device of the present invention includes: a system management module 411, a network service/monitoring module 412, a wireless network parameter management module 413, a wireless communication function module 414, a data analysis module 415, a building concentrator abnormality inspection module 416, a data transmission module 417 and a wireless transceiver module 418.

Wherein:

the system management module is a core module in the data transfer manager, and is used for centralized control and management of other functional modules, and mainly comprises system monitoring, functional module internal communication, system parameter setting, functional module management and the like. The following functions are realized:

1. the data transfer manager software system is a lowest-layer platform for monitoring all upper-layer system modules; the system running condition monitoring and the system serious abnormal self-repairing are realized; and the long-term stable operation of the system is ensured.

2. And outputting a log file of the management system.

3. And process communication of each functional module of the upper layer is realized.

4. And controlling the data flow of the system.

5. And scheduling the system workflow.

6. And managing a database.

7. And distributing system parameters.

8. Management of system-wide related data/parameters.

The network service/monitoring module is used for establishing bidirectional connection between the VPN and the receiving terminal server and realizing error-free data transmission; detecting whether the network connection and the VPN are normal; and performs automatic dialing control.

The wireless network parameter management module is used for analyzing a command protocol, searching a command destination, providing time synchronization (the system time of the data transfer manager is used as standard time in the whole community) for the building concentrator, and connecting a time server to correct the system time in the idle time of the system.

The wireless communication functional module communicates with the wireless transceiver through RS232 to exchange data, so as to realize wireless data transmission with the building concentrator; meanwhile, the realization of a connection-oriented transport layer protocol receives data packets sent by each building concentrator, and the data packets are transmitted to a data analysis module for further processing after being processed by the transport layer protocol layer; and packaging the downlink data of the command analysis module and the time synchronization service module, and distributing commands and setting parameters according to the time slices to which the corresponding building concentrators belong.

The data analysis module is used for analyzing the data packet structure, extracting corresponding data, storing the corresponding data into a backup database, and deleting outdated data of the database.

The building concentrator abnormity detection module is used for detecting data in the database at fixed time and transmitting the working condition of the building concentrator to the data transmission module;

In a specific embodiment, the data transfer manager is composed of a CPU singlechip, a wireless transceiver module, a modem and the like.

Please continue to refer to fig. 11. The receiving terminal server 42 in the community meter data relay management device includes: a network service module 421, a data receiving module 422, a device exception alarm module 423, and a command issuing module 424.

Wherein: the network service module establishes bidirectional connection with the data transfer manager through the VPN and realizes error-free data transmission.

The data receiving module is used for receiving the data transmitted by the data transfer manager, storing the normal data into a data file according to a certain format and transmitting the normal data to a specified directory; and sending the equipment abnormity information to an equipment abnormity alarm module.

And the equipment abnormity alarm module is used for processing equipment abnormity information.

The command issuing module is used for encapsulating specific commands into reports according to a protocol, transmitting the reports into the network service module and sending the reports to the corresponding data transfer manager.

The system setting client 43 in the community meter data transfer management apparatus of the present invention is constituted by a computer, and is used for querying user data and setting system parameters through a WEB browser.

Please refer to fig. 12. This is a work flow chart of the community table data transit management apparatus in the present invention. The data flow is discontinuous two main lines of up and down, besides, the data flow also includes data flow related to local operation.

A downlink data flow:

a. two lines enter before network transmission control, one line is time synchronization between the system and a time server on the Internet through an NTP protocol, and the system time is taken as the reference time of the whole wireless network; and secondly, a receiving terminal positioned in the accounting center sends a command to the community data transfer manager through an application layer network protocol.

b. After analyzing the data packet and decomposing the command, the external network data packet is temporarily stored in the buffer area of the memory

c. When the lower concentrator requests the community data transfer manager to set parameters, the data transfer manager takes out the relevant command parameters from the cache, packages the command parameters according to a mode specified by a wireless communication protocol, and sends the command parameters to the corresponding concentrator through a wireless transmission control module and a wireless transmission module.

And (3) uplink data flow:

a. the data flow entering the system from the wireless module has three types, 1, parameter request 2, alarm information 3 table has data. The parameter request is sent to the following data flow, and the alarm information and the meter data are temporarily stored in the memory cache after being respectively subjected to alarm information analysis and meter data analysis.

b. According to the design requirement of the whole system, the community data transfer manager regularly exchanges data with the accounting center, at this time, the meter data and the alarm information are taken out from the buffer, and packaged and sent to the accounting center according to the application layer network protocol.

c. The daily data of the meter can be stored into the database at regular time, and meanwhile, the data which cannot be successfully sent to the account can be reported again when the data is reported next time.

A user of the system setting client can directly inquire the table data in the database through a WEB browser. An administrator with certain authority can set local system parameters through a WEB browser, and the set parameters are directly stored in a database.

Please refer to fig. 13. This is the outline structure diagram of the hand held set in the present invention. The handset 5 of the wireless remote meter reading system comprises a shell 51, a keyboard 52 arranged on the panel of the shell, a power switch 53 and a display 54, a control circuit 55 arranged in the shell and an operating power supply 56 for providing the operation of each circuit.

Please refer to fig. 14. The control circuit 55 includes: a keyboard circuit 551 electrically connected to the keyboard, a liquid crystal module 552 driving the display of the display screen, and: a central control processing unit 553, an RF transceiver unit 554, an antenna 555, a serial port module 556, a real time clock 557, a reset circuit 558, and may further include a power amplifier 559, an RF switch 560, and a light emitting diode 561. The input end of the central control processing unit is respectively connected with the output ends of the real-time clock circuit and the reset circuit, the central control processing unit is also respectively connected with the radio frequency transceiving unit, the serial port module and the keyboard circuit in a bidirectional way, and the central control processing unit is connected with the liquid crystal module; the radio frequency transceiving unit is used for transceiving wireless signals through an antenna; and the serial port module establishes communication with each terminal of the remote wireless meter reading system. When transmitting signals, the transmitting end of the radio frequency transmitting and receiving unit is connected with the input end of the power amplifier, the output end of the power amplifier is connected with the radio frequency switch, and the signals are transmitted through the antenna; when receiving signals, the receiving end is connected to the receiving end of the radio frequency transceiving unit through the radio frequency switch.

In a specific embodiment, the liquid crystal module can be a 128 × 64 dot matrix, and each screen can display 4 rows and 8 columns of Chinese characters; the keyboard circuit is connected with a 4 x 5 keyboard which comprises numeric keys 0-9, function keys F1-F4, a confirmation key, a cancel key, a decimal key and a power supply key.

The central control processing unit can be formed by a single-chip microcomputer CPU, and the model of the CPU can be M430F149, for example. (ii) a

The real-time clock circuit can adopt a chip with the model of PCF8563, and can provide a real-time clock of the year, month, day, week, hour, minute and second;

in the RS232 and TTL serial ports, the TTL serial port is used for communicating with the meter module and setting parameters and the like of the meter module, and the RS232 serial port is connected with the floor concentrator, the building concentrator and the relay to set and read the parameters;

the regulated power supply circuit provides a regulated voltage output of 3.3V.

The radio frequency transceiver module can adopt a radio frequency chip of CC20 model for example; the power amplifier may employ, for example, a model RF2117 integrated package. A Radio Frequency (RF) switch may be constructed using, for example, a chip model HMC154S 8.

The power supply adopts a 4.2V lithium battery for power supply.

Referring now to FIG. 15, there is illustrated an electrical block diagram of the functions of the central control processing unit 553 of the present invention. The central control processing unit 553 used in the handset of the remote wireless meter reading system of the invention comprises a system management module 5531, a keyboard input processing module 5532, a parameter setting module 5533, a parameter detection module 5534, a signal testing module 5535, a system timing module 5536, a community meter data transfer management device processing module 5537, a function module 5538 and a communication module 5539. The function module 5538 includes a meter processing module 55381, a floor concentrator processing module 55382, and a floor concentrator processing module 55383, and the communication module 5539 includes a serial communication module 55391 and a wireless communication module 55392.

In the central control processing unit:

the system management module is used for coordinating and controlling the whole process of the system and the scheduling of each functional unit;

the keyboard input processing module is used for responding to keyboard input and calling related programs such as parameter selection, parameter input and the like;

the parameter setting module is used for completing the setting of parameters of each terminal, including frequency points, water quantity, an Identification (ID) list, meter reading intervals and reporting time;

the parameter detection module is used for reading parameter configuration, state information and the like of each terminal, analyzing the acquired data and judging the working state of the terminal module;

the signal testing module is used for testing the signal intensity of each terminal and analyzing and processing the signal intensity;

the system timing module and the community meter data transfer management device processing module together complete the function of acquiring the system time from the community meter data transfer management device; the whole system takes the time of the community meter data transfer management device as a reference;

the meter processing module, the floor concentrator processing module and the building concentrator processing module are used for receiving parameters and signals according to different terminals and communicating with other terminals;

the wireless communication module is responsible for receiving and transmitting wireless data; packing the setting and testing data, sending and receiving response data;

the serial port communication module is used for communicating with each terminal and sending and receiving serial port data. The serial port communication module is an RS232 serial port and a TTL serial port, and parameter setting, reading and displaying are carried out on the wireless meter through the TTL serial port; and parameter setting, reading and displaying are carried out on the floor concentrator, the building concentrator and the relay in an RS232 serial port or wireless mode. The parameters for setting the parameters of the wireless meter through the TTL serial port comprise: system time, hardware identification, reporting time, frequency band, usage of each meter, meter reading interval, and time slice for setting reporting time of each meter.

The parameters for setting the parameters of the floor concentrator, the building concentrator and the relay in an RS232 serial port or wireless mode comprise system time, hardware Identification (ID), destination identification, an identification list, a relay number, reporting time, parameter acquisition time, frequency band and meter reading interval.

The specific functions of the handset of the invention are as follows:

firstly, parameter setting, reading and displaying are carried out on the wireless meter module through a TTL serial port, and the parameters comprise: system time, hardware Identification (ID), reporting time, frequency band, water quantity, meter reading interval and time slice;

secondly, parameter setting, reading and displaying are carried out on the floor concentrator, the building concentrator and the relay through RS232 serial ports or in a wireless mode, and the parameters comprise: the method comprises the following steps of (1) carrying out system time, hardware Identification (ID), destination Identification (ID), Identification (ID) list, relay number, reporting time, parameter acquisition time and frequency band meter reading interval;

thirdly, performing power test on the wireless meter module, the floor concentrator and the building concentrator, displaying the field intensity of each point and facilitating field installation;

and fourthly, acquiring the system time from the community meter data transfer management device and timing the whole system.

By using the handheld device, not only can each module be initialized and the wireless signal field intensity be tested during installation, but also the condition of each module can be known at any time, and necessary guarantee is provided for the maintenance and management of the system.

The handset can detect the power, read and set parameters and the like of meter modules, floor concentrators, relays and floor concentrators, and can acquire system time from a community meter data transfer management device to perform system timing. The operation of the handset on each terminal module is mainly performed by typing in the keyboard, the user selects the function module from the keyboard and performs corresponding operation, and meanwhile, the handset displays the operation process. After the system is powered on, the buffer area is initialized firstly, the buffer area comprises an RAM space and a FLASH space, then other peripheral modules such as a serial port, a timer, a radio frequency interface and the like are initialized, display initialization is carried out, and a main menu is displayed.

Please refer to fig. 16. The work flow of the handset of the remote wireless meter reading system for remote wireless meter reading comprises the following steps:

1-1, inputting through a keyboard, and selecting a terminal module and a functional module to be operated by a user.

The 1-2 function module processes program and divides parameter setting, parameter proofreading, signal testing and system timing.

1-3, after selecting the function, inputting corresponding parameters by a user through a keyboard; for example, in parameter setting, the type and specific numerical value of a parameter are input; inputting parameters needing to be corrected in parameter correction; in the signal test, a hardware Identification (ID), a frequency point and the like to be tested are input. An important function of the handset is to set parameters, and a user inputs various parameters through a keyboard, and can set various parameters of the terminal through a serial port, such as system time, hardware Identification (ID), destination Identification (ID), an Identification (ID) list, a meter reading interval, initial water quantity, a time slice, a frequency band, reporting time and parameter time acquisition.

And the 1-4 keyboard input processing module receives the parameters input by the keyboard, and the system calls the corresponding function module and the terminal processing module to combine and package the data according to the set terminal and function.

1-5 user selects communication mode through keyboard, system gives data to serial communication module or wireless communication module, then sends data to terminal.

1-6, the data received by the wireless communication module and the serial communication module are firstly processed by a data distribution program, and the data distribution program classifies the data reports according to the source and the service type of the data.

1-7, the data received by the system is divided into parameter correction, signal test and system time correction according to the function, and the system calls the corresponding function module processing program to process. 1-8 in each function module processing program, the module analyzes the received data, judges the performance and state of each terminal according to the data, and displays the result through the display module.

The handset can read and display the parameters of the terminal, the read parameters can be obtained through a serial port or wirelessly, and the parameters are displayed through the liquid crystal display screen by the handset after being obtained. The handset reads the hardware parameters, and the communication mode selected by the user from the keyboard is a serial port or a radio frequency interface. The handset acquires the system time from the terminal as a time reference in the whole cell.

The wireless signal transmission strength at each installation point can be tested by using the handset, and the installation position of each hardware is determined by testing the strength. The Identification (ID) and frequency band of each point of the field intensity test can be obtained by reading parameters through a serial port or manually inputting the parameters.

By default, the handset is in a wireless data receiving state, and in communication with other terminals (such as a meter, a floor concentrator, a building concentrator and a data transfer manager), the handset is in a state of actively sending data.

Please refer to fig. 17. The working principle of the invention is further described below with reference to an embodiment of a remote water meter reading device:

the wireless intelligent water meter records and reads the pulse signals sent by the reed switches in the meter and calculates the usage, and transmits the running state of the intelligent meter, the battery usage state, the code reading and the usage of the intelligent meter to the floor concentrator at regular time, after the floor concentrator collects the related information of the intelligent meters in the jurisdiction area, the related data information is sent to the floor concentrator at regular time, after the floor concentrator collects the information sent by the floor concentrator in the jurisdiction area, the related information is sent to the community meter data transfer management device at regular time, after the community meter data transfer management device collects the data of the whole cell, the related information is sent to the corresponding function management departments at regular time through the public network, and after the function management departments receive the data, the data are classified, all equipment of the community wireless system is remotely monitored, and the running condition of the system is known, so that the system can be processed and maintained in time; realizing meter reading and billing and sending meter reading and billing data to a payment department to realize automatic billing and account cancellation functions; and performing data analysis to provide decision basis for production, prediction and management departments.

The management personnel can set parameters of all levels of equipment in the accounting center, and the set parameters are regularly sent to the corresponding community meter data transfer management device every day. And the community meter data transfer management device classifies the received setting parameters. When the building concentrator sends a parameter request to the community meter data transfer management device at regular time, the community meter data transfer management device sends related setting parameters to the building concentrator. The floor concentrator obtains the setting parameters of the floor concentrator in the same way, and sends parameter requests to the floor concentrator in a timing mode to obtain the parameters. The water meter automatically acquires the setting parameters sent by the floor concentrator after reporting data each time.

Claims

1. The wireless remote meter reading system is characterized by comprising various meters arranged in a user room, floor concentrators arranged on each floor of each building, the building concentrator arranged on each building, a community meter data transfer management device arranged in a community management center, a handset and an accounting center arranged in a jurisdiction area; the community meter data transfer management device comprises a data transfer manager, a receiving terminal and a system setting client; wireless transmission signals are adopted among data transfer managers in various meters, floor concentrators, building concentrators and community meter data transfer management devices and handsets, and wired network transmission signals are adopted between the data transfer managers of the community meter data transfer management devices and receiving terminals; data lines are adopted between the receiving terminal and the accounting center and between the data transfer manager and the system setting client to transmit data.

2. The system according to claim 1, wherein fire walls are provided at both ends of the wired network.

3. The wireless remote meter reading system according to claim 1, wherein the meter is a wireless meter, and comprises a pulse meter body, a power supply for operating the pulse meter, and a display screen arranged on the front surface of the pulse meter body; the radio frequency transceiver also comprises a data acquisition end, a meter data acquisition and processing unit, a radio frequency transceiver unit and an antenna; the data acquisition end is connected with the output end of the meter, the output end of the data acquisition end is connected with the input end of the meter data acquisition and processing unit, the meter data acquisition and processing unit is bidirectionally connected with the radio frequency transceiving unit, and the radio frequency transceiving unit transmits and receives wireless signals through an antenna.

4. The wireless remote meter reading system according to claim 3, wherein the meter data acquisition and processing unit comprises: the system comprises a system management module, a data acquisition module, a data analysis module, a data storage module, a wireless communication module, an interrupt processing module, a timer module, a wireless test module, a serial communication module, a command analysis module, a parameter processing module and a parameter storage module;

the system management module coordinates and controls the whole flow of the meter data acquisition and processing unit, the scheduling of each module and the low power consumption control;

the data acquisition module acquires pulse data of the meter through the data acquisition end;

the data analysis module receives the data output by the data acquisition module, analyzes and processes the acquired water volume pulse, judges boundary crossing and alarms, and accumulates the water volume;

the data storage module receives the data output by the data analysis module, and performs data combination and storage on the obtained water volume data according to the format;

the wireless communication module is bidirectionally connected with the radio frequency transceiving module and is responsible for transceiving wireless data of the meter;

the timer module is set according to system parameters, and the timer module calls the data storage module and the wireless communication module to send water volume and alarm data at regular time.

The interrupt processing module schedules the data acquisition module to inform the system management module in an interrupt mode so as to ensure the accurate measurement of water quantity;

the serial port communication module establishes communication with the handset and sends and receives serial port data;

the command analysis module receives and analyzes the handset command and divides the functions according to the protocol;

the parameter processing module receives a parameter setting command of the handset output from the command analysis module and modifies corresponding parameters of the system; responding to the handheld parameter reading instruction, and returning the parameter and state of the system;

the parameter storage module is used for storing set parameters;

the wireless test module is used for receiving the command to respond to the wireless test of the handset and returning parameters such as field intensity and the like.

5. The remote wireless meter reading system according to claim 1, wherein the floor concentrator comprises: the radio frequency transceiver comprises a power supply unit, an interface unit, a control unit, a radio frequency transceiving unit and a clock unit;

6. The building concentrator for a remote wireless meter reading system according to claim 5, wherein the control unit comprises: the device comprises an RTC clock module, a parameter application module, a data combination and packaging module, a data forwarding module, a data storage module, a data packet splitting module, a data receiving and caching module, a parameter setting module, a parameter storage module, a command analysis module, a wireless test module, a wireless communication module, a serial port communication module, a power control module, a data sending and caching module and an antenna;

the RTC clock module is respectively connected with the parameter application module and the data forwarding module in two directions;

the data forwarding module, the data storage module, the data packet splitting module and the data receiving and caching module are sequentially and bidirectionally connected; the data packet splitting module is respectively connected with the parameter storage module and the command analysis module in a bidirectional way;

the parameter setting module, the parameter storage module, the command analysis module and the wireless test module are sequentially connected in a bidirectional way; the output end of the command analysis module is connected with the input end of the parameter setting module;

the output ends of the parameter application module, the data forwarding module and the parameter setting module are respectively connected with the input end of the data combination packaging module;

the output ends of the wireless test module and the data combination packaging module are respectively connected with the input end of the data sending and caching module;

the output end of the data sending and caching module is respectively connected with the input ends of the serial port communication module and the wireless communication module;

the output ends of the serial port communication module and the wireless communication module are connected with the input end of the data receiving and caching module;

the output end of the power control module is connected with the input end of the wireless communication module;

the wireless communication module is bidirectionally connected with the antenna.

7. The remote wireless meter reading system according to claim 1, wherein the building concentrator comprises: the radio frequency transceiver comprises a power supply unit, an interface unit, a control unit, a radio frequency transceiving unit and a clock unit;

8. The building concentrator for a remote wireless meter reading system according to claim 7, wherein the control unit comprises: the device comprises an RTC clock module, a parameter application module, a wireless communication module, a serial port communication module, a data receiving and caching module, a data packet splitting module, a data storage module, a data forwarding module, a data combination and packaging module, a wireless test module, a command analysis module, a parameter storage module, a parameter setting module, a power control module, a data sending and caching module, a parameter automatic routing module, a relay forwarding module and an antenna;

the output ends of the parameter application module, the relay forwarding module and the data forwarding module are respectively connected with the input end of the data combination packaging module;

the data forwarding module, the data storage module, the data packet splitting module and the data receiving and caching module are sequentially and bidirectionally connected; the data packet splitting module is respectively connected with the relay forwarding module, the parameter automatic routing module and the command analysis module in a bidirectional way;

the parameter storage module, the parameter automatic routing module, the command analysis module and the wireless test module are sequentially connected in a bidirectional way; the output end of the parameter automatic routing module is connected with the input end of the parameter setting module;

9. The remote wireless meter reading system according to claim 1, wherein the data relay manager in the community meter data relay management device comprises: the system comprises a system management module, a network service/monitoring module, a wireless network parameter management module, a wireless communication function module, a data analysis module, a building concentrator abnormity inspection module, a data sending module and a wireless transceiving module;

the other functional modules are used for centralized control and management;

10. The remote wireless meter reading system according to claim 1, wherein the receiving terminal server in the community meter data transfer management device comprises: the device comprises a network service module, a data receiving module, an equipment abnormity alarm module and a command issuing module;

11. The remote wireless meter reading system according to claim 1, wherein the system setting client in the community meter data transfer management device is constituted by a computer, and is configured to query user data and perform setting of system parameters through a WEB browser.

12. The remote wireless meter reading system according to claim 1, wherein the handset comprises: the keyboard and the display screen are arranged on a panel of the shell, the control circuit is arranged in the shell, and the working power supply is used for providing work of each circuit; the control circuit comprises a keyboard circuit electrically connected with the keyboard, a liquid crystal module for driving the display screen to display, and: a central control processing unit, a radio frequency transceiver unit, an antenna, a serial port module, a real-time clock circuit and a reset circuit; the input end of the central control processing unit is respectively connected with the output ends of the real-time clock circuit and the reset circuit, the central control processing unit is also respectively connected with the radio frequency transceiving unit, the serial port module and the keyboard circuit in a bidirectional way, and the central control processing unit is connected with the liquid crystal module; the radio frequency transceiving unit is used for transceiving wireless signals through an antenna; and the serial port module establishes communication with each terminal of the remote wireless meter reading system.

13. The remote wireless meter reading system according to claim 12, wherein the central control processing unit comprises a system management module, a keyboard input processing module, a parameter setting module, a parameter detection module, a signal test module, a system timing module, a community meter data transfer management device processing module, a meter processing module, a floor concentrator processing module, a serial communication module, and a wireless communication module;

the keyboard input processing module is used for responding to keyboard input and calling related programs of parameter selection and parameter input;

the parameter setting module is used for completing the setting of parameters of each terminal, and the parameters comprise frequency points, water quantity, a hardware Identification (ID) list, meter reading intervals and reporting time;

the system time correction module and the community meter data transfer management device processing module together complete the function of obtaining the system time from the community meter data transfer management device; the whole system takes the time of the community meter data transfer management device as a reference;

the serial port communication module is used for communicating with each terminal and sending and receiving serial port data.

14. The handset for the remote wireless meter reading system according to claim 13, wherein the serial communication module is RS232/TTL serial; the wireless meter is subjected to parameter setting, reading and displaying through the TTL serial port, and the floor concentrator, the building concentrator and the relay are subjected to parameter setting, reading and displaying through the RS232 serial port or the wireless mode.