CN102768051A - Remote monitoring and warning system and method for electromagnetic flow meter of tap water - Google Patents
Remote monitoring and warning system and method for electromagnetic flow meter of tap water Download PDFInfo
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- CN102768051A CN102768051A CN2012102662144A CN201210266214A CN102768051A CN 102768051 A CN102768051 A CN 102768051A CN 2012102662144 A CN2012102662144 A CN 2012102662144A CN 201210266214 A CN201210266214 A CN 201210266214A CN 102768051 A CN102768051 A CN 102768051A
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Abstract
The invention relates to a remote monitoring and warning system for an electromagnetic flow meter of tap water. The system comprises a data collecting and recording module and a data information transmission module, wherein the data information transmission module is used for sending an output signal of an operating condition and/or a monitoring and warning signal of the electromagnetic flow meter to a remote monitoring and warning terminal. The invention also relates to a method used for wirelessly diagnosing the electromagnetic flow meter in a tap water supply network and remotely warning failures based on the system. By adopting the remote monitoring and warning system and the method for the electromagnetic flow meter of the tap water, managerial personnel can timely know the operating condition and water level information of the electromagnetic flow meter, so that management efficiency of the electromagnetic flow meter can be greatly increased, failures can be timely found out and carried out, therefore, the operating condition of the electromagnetic flow meter can be diagnosed, monitored and recorded through a wireless network, a water supply condition of a pipe network can be monitored, the failures can be remotely warned and the online data can be monitored in a tap water industry. The system and the method have the advantages of simple structure, high efficiency and practicability, low implementation cost, stable and reliable performance and wide scope of application.
Description
Technical field
The present invention relates to tap water pipe network field, particularly tap water pipe network Working Status Monitoring administrative skill field specifically is meant a kind of tap water Electromagnetic Flow appearance remote monitoring and warning system and method thereof.
Background technology
The Electromagnetic Flow appearance is used in water supply industry widely, and metering is the great advantage of such flow instrument more accurately, therefore on the water supply network of larger caliber, all uses the Electromagnetic Flow appearance to write down output.
The Electromagnetic Flow appearance can be divided into powered battery according to power supply power supply mode classification and supply power two types with alternating current (civil power).The dry cell flow instrument does not have the situation of unexpected power down; But the flow instrument of ac-powered uses civil power (AC220V) supply; Because of various transient causes can run into the situation of power failure, power down unavoidably, and after the instrument power down, ducted water is still flowing; This moment, flow instrument can't measure the water yield, and the water yield statistics after the dead electricity needs the method metering through estimation.Definite power-off time is one of important evidence of estimation.The concrete dead electricity time can not obtain from the Electromagnetic Flow appearance, and this exerts a certain influence to gage work.
And pipe network distributes broad and disperses the tap water supply pipe network in city suburbs; So the flow instrument coverage is big; In flow instrument quantity more for a long time; Can't accomplish patrolling and examining of minor cycle, present Electromagnetic Flow appearance does not have wireless remote diagnosis and fault alarm function yet at all, so when flow instrument breaks down or damage, can't find timely (to make mistakes like the flow instrument parameter and to cause the flux cumulating number to quit work or be multiplied to make relative measures; By near barbarous construction sensor of other unit construction team, it is disconnected to cause the sensor transmissions line to be dug, and flow instrument produces ageing equipment than after long tenure of use, and these situation all can't in time be known, and make the metering of the water yield receive very big influence).
Because the flow instrument in the water supply network all is to be used for water balance, if can accurately not measure, will directly cause economic loss.
Meanwhile, the radio communication gsm system is comparative maturity in the mobile communication system, perfect, more a kind of system of application.It mainly provides multiple business such as voice, short message, data.Can realize transmitting the data communication system of various monitorings, monitor data signal and control command based on the GSM short message function.
At any time monitored the manual inspection that the device of flow instrument running status and early warning in time substitutes poor efficiency in 24 hours so press for an ability.Let this device accomplish to guarantee to the full extent the normal operation of instrument.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of can be effectively to distributed electromagnetic flow instrument in the tap water supply pipe network carry out that Real-time Monitor Management, simple in structure, highly effective, realization cost are lower, stable and reliable working performance, the scope of application tap water Electromagnetic Flow appearance remote monitoring and warning system and method thereof comparatively widely.
In order to realize above-mentioned purpose, tap water Electromagnetic Flow appearance remote monitoring and warning system of the present invention and method thereof are following:
This tap water Electromagnetic Flow appearance remote monitoring and warning system, its principal feature is that described system comprises:
The data acquiring and recording module is connected with corresponding Electromagnetic Flow appearance, gathers the running status output signal of this Electromagnetic Flow appearance, and with the running status output signal accumulative total and the preservation that collect, the while is this running status variation of output signals of monitoring in real time;
The data information transfer module; Be connected with corresponding data acquiring and recording module; And be connected with the long-distance monitoring and alarming terminal through wireless data communication network, running status is exported signal and/or the monitoring alarm signal is sent to described long-distance monitoring and alarming terminal.
Running status output signal in this tap water Electromagnetic Flow appearance remote monitoring and warning system comprises instantaneous flow rate signal, water yield signal and switching value signal.
Instantaneous flow rate signal in this tap water Electromagnetic Flow appearance remote monitoring and warning system is a simulating signal.
Water yield signal in this tap water Electromagnetic Flow appearance remote monitoring and warning system is a pulse signal.
Data acquiring and recording module in this tap water Electromagnetic Flow appearance remote monitoring and warning system comprises CPU, instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit and memory cell; Described CPU all is connected with the data information transfer module with described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit, memory cell respectively, and described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit all are connected with described Electromagnetic Flow appearance.
Instantaneous delivery input interface unit in this tap water Electromagnetic Flow appearance remote monitoring and warning system is 10 adjustable A/D analog quantity input interface units of range parameter program.
The incoming frequency of the pulse water yield input interface unit in this tap water Electromagnetic Flow appearance remote monitoring and warning system is 20KHz.
The UPS signal input interface unit in this tap water Electromagnetic Flow appearance remote monitoring and warning system and the incoming frequency of fault-signal input interface unit are 5Hz.
Watchdog unit in this tap water Electromagnetic Flow appearance remote monitoring and warning system is a counter circuit.
Data information transfer module in this tap water Electromagnetic Flow appearance remote monitoring and warning system comprises power supply unit, Flash storer, ZIF connector, antennal interface unit, transmitter unit and BBP; Described data acquiring and recording module inserts described wireless data communication network through described ZIF connector, BBP, transmitter unit, antennal interface unit successively; Described Flash storer is connected with described BBP, and described power supply unit all is connected with transmitter unit with described BBP, ZIF connector respectively.
BBP in this tap water Electromagnetic Flow appearance remote monitoring and warning system is the GSM BBP, and described wireless data communication network is the gsm wireless communication network.
Should realize the Electromagnetic Flow appearance in the tap water supply pipe network is carried out the method for wireless diagnostics and fault remote alarms based on above-mentioned system, its principal feature is that described method may further comprise the steps:
(1) system carries out initialization operation;
(2) described data acquiring and recording module is carried out data acquisition and data analysis processing operation to the Electromagnetic Flow appearance that is connected;
(3) data after described data acquiring and recording module will gather and analyze are sent to described long-distance monitoring and alarming terminal through described data information transfer module and wireless data communication network;
(4) subsequent treatment of condition monitoring and alarm condition report is carried out at described long-distance monitoring and alarming terminal according to received data.
The system that this realization is carried out the Electromagnetic Flow appearance in the tap water supply pipe network in the method for wireless diagnostics and fault remote alarms carries out initialization operation, may further comprise the steps:
(11) CPU in the described data acquiring and recording module is carried out timer foundation and initialization setting;
(12) described CPU is carried out counter foundation and initialization setting;
(13) described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit carry out the initialization setting of A/D analog input data acquisition initialization setting and baud rate;
(14) described data information transfer module is carried out the initialization setting.
The data acquiring and recording module that this realization is carried out the Electromagnetic Flow appearance in the tap water supply pipe network in the method for wireless diagnostics and fault remote alarms is carried out the data acquisition process operation to the Electromagnetic Flow appearance that is connected, and is specially:
Instantaneous delivery input interface unit in the described data acquiring and recording module is gathered the instantaneous flow rate signal in the described Electromagnetic Flow appearance; Described pulse water yield input interface unit is gathered the integrated flow signal in the described Electromagnetic Flow appearance; The ups power operation detection information in the described Electromagnetic Flow appearance is gathered in described UPS signal input interface unit; Described fault-signal input interface unit is gathered the running state information in the described Electromagnetic Flow appearance.
This realization is carried out data acquiring and recording module in the method for wireless diagnostics and fault remote alarms and the Electromagnetic Flow appearance that is connected is carried out data analysis is handled operation to the Electromagnetic Flow appearance in the tap water supply pipe network; Comprise excessive performance analysis judgment processing operation of discharge and the too small performance analysis judgment processing operation of discharge; The excessive performance analysis judgment processing operation of described discharge may further comprise the steps:
(21) described data acquiring and recording module is in advance hour to be the discharge data of the preset fate of the real-time saved system of unit;
(22) when each hour finishes, read hour discharge data of section at the same time of the systemic presupposition fate of being preserved, and calculate its average current value;
(23) will this average current value and current hour discharge data compare;
(24) if current hour discharge data greater than average current value, and both differences are greater than the error allowed band of systemic presupposition, it is excessive unusual then to be judged to be the water yield, and produces the excessive warning information of discharge;
The too small performance analysis judgment processing operation of described discharge may further comprise the steps:
(25) described data acquiring and recording module is in advance hour to be the discharge data of the preset fate of the real-time saved system of unit;
(26) when each hour finishes, read hour discharge data of section at the same time of the systemic presupposition fate of being preserved, and calculate its average current value;
(27) will this average current value and current hour discharge data compare;
(28) if current hour discharge data less than average current value, and both differences are greater than the error allowed band of systemic presupposition, it is too small unusual then to be judged to be the water yield, and produces the too small warning information of discharge.
This realization is carried out in the method for wireless diagnostics and fault remote alarms further comprising the steps of to the Electromagnetic Flow appearance in the tap water supply pipe network:
(5) control information of being sent according to the long-distance monitoring and alarming terminal that receives through described wireless data communication network of described data information transfer module is carried out corresponding action and is handled or information-reply.
The step (5) that this realization is carried out the Electromagnetic Flow appearance in the tap water supply pipe network in the method for wireless diagnostics and fault remote alarms specifically may further comprise the steps:
(51) described data information transfer module receives the control information that send at described long-distance monitoring and alarming terminal through described wireless data communication network, and delivers to the CPU in the described data acquiring and recording module;
(52) described CPU judges whether the information that the long-distance monitoring and alarming terminal is sent includes management control character information;
(53), then ignore this information and withdraw from if not; If then judge the type and the content of this order;
(54) type and the content of described CPU through this order carry out that corresponding action is handled or successively through described data information transfer module and wireless data communication network to described long-distance monitoring and alarming terminal return information.
The control information that this realization is carried out the Electromagnetic Flow appearance in the tap water supply pipe network in the method for wireless diagnostics and fault remote alarms is a short message.
Adopted the tap water Electromagnetic Flow appearance remote monitoring and warning system and the method thereof of this invention, owing to wherein utilize the gsm communication module as the telecommunication media, thus make supervisory system can pass through GSM public network information platform; Send to managerial personnel to the various types of signal of Electromagnetic Flow appearance and water yield accumulative total information; Note instruction that simultaneously also can the receiving management personnel, and do answer, thus make managerial personnel in time grasp the duty and the water yield information of Electromagnetic Flow appearance; Improved the efficiency of management of Electromagnetic Flow appearance greatly; The timely discovery that helps fault handles, thereby realized the monitoring of the duty of Electromagnetic Flow appearance in the water supply industry through wireless network diagnostic monitoring, record, pipe network water supply condition monitoring and fault remote alarms and online data thereof, and is simple in structure; Highly effective; Realize that cost is lower, stable and reliable working performance, the scope of application are comparatively extensive.
Description of drawings
Fig. 1 is the overall architecture synoptic diagram of tap water Electromagnetic Flow appearance remote monitoring and warning system of the present invention.
Fig. 2 is that the function of the data information transfer module in the tap water Electromagnetic Flow appearance remote monitoring and warning system of the present invention is formed synoptic diagram.
Fig. 3 is the application scenarios synoptic diagram of tap water Electromagnetic Flow appearance remote monitoring and warning system of the present invention.
Fig. 4 carries out the overall flow synoptic diagram of the method for wireless diagnostics and fault remote alarms to the Electromagnetic Flow appearance in the tap water supply pipe network for realization of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also Fig. 1 to shown in Figure 3, this tap water Electromagnetic Flow appearance remote monitoring and warning system, comprising:
(1) data acquiring and recording module is connected with corresponding Electromagnetic Flow appearance, gathers the running status output signal of this Electromagnetic Flow appearance, and with the running status output signal accumulative total and the preservation that collect, the while is this running status variation of output signals of monitoring in real time; Wherein, this running status output signal comprises instantaneous flow rate signal, water yield signal and switching value signal, and this instantaneous flow rate signal is a simulating signal, and this water yield signal is a pulse signal;
This data acquiring and recording module comprises CPU, instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit and memory cell; Described CPU all is connected with the data information transfer module with described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit, memory cell respectively, and described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit all are connected with described Electromagnetic Flow appearance; This instantaneous delivery input interface unit is 10 adjustable A/D analog quantity input interface units of range parameter program; The incoming frequency of this pulse water yield input interface unit is 20KHz; The UPS signal input interface unit that is somebody's turn to do and the incoming frequency of fault-signal input interface unit are 5Hz, and this watchdog unit is a counter circuit.
(2) data information transfer module; Be connected with corresponding data acquiring and recording module; And be connected with the long-distance monitoring and alarming terminal through wireless data communication network, running status is exported signal and/or the monitoring alarm signal is sent to described long-distance monitoring and alarming terminal.
This data information transfer module comprises power supply unit, Flash storer, ZIF connector, antennal interface unit, transmitter unit and BBP; Described data acquiring and recording module inserts described wireless data communication network through described ZIF connector, BBP, transmitter unit, antennal interface unit successively; Described Flash storer is connected with described BBP, and described power supply unit all is connected with transmitter unit with described BBP, ZIF connector respectively; This BBP is the GSM BBP, and described wireless data communication network is the gsm wireless communication network.
See also shown in Figure 4ly again, should realize the Electromagnetic Flow appearance in the tap water supply pipe network is carried out the method for wireless diagnostics and fault remote alarms based on above-mentioned system, comprising following steps:
(1) system carries out initialization operation, may further comprise the steps:
(a) CPU in the described data acquiring and recording module is carried out timer foundation and initialization setting;
(b) described CPU is carried out counter foundation and initialization setting;
(c) described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit carry out the initialization setting of A/D analog input data acquisition initialization setting and baud rate;
(d) described data information transfer module is carried out the initialization setting;
(2) described data acquiring and recording module is carried out data acquisition and data analysis processing operation to the Electromagnetic Flow appearance that is connected; This data acquiring and recording module is carried out the data acquisition process operation to the Electromagnetic Flow appearance that is connected, and is specially:
Instantaneous delivery input interface unit in the described data acquiring and recording module is gathered the instantaneous flow rate signal in the described Electromagnetic Flow appearance; Described pulse water yield input interface unit is gathered the integrated flow signal in the described Electromagnetic Flow appearance; The ups power operation detection information in the described Electromagnetic Flow appearance is gathered in described UPS signal input interface unit; Described fault-signal input interface unit is gathered the running state information in the described Electromagnetic Flow appearance;
This data acquiring and recording module is carried out data analysis to the Electromagnetic Flow appearance that is connected and is handled operation; Comprise excessive performance analysis judgment processing operation of discharge and the too small performance analysis judgment processing operation of discharge; The excessive performance analysis judgment processing operation of described discharge may further comprise the steps:
(a) described data acquiring and recording module is in advance hour to be the discharge data of the preset fate of the real-time saved system of unit;
(b) when each hour finishes, read hour discharge data of section at the same time of the systemic presupposition fate of being preserved, and calculate its average current value;
(c) will this average current value and current hour discharge data compare;
(d) if current hour discharge data greater than average current value, and both differences are greater than the error allowed band of systemic presupposition, it is excessive unusual then to be judged to be the water yield, and produces the excessive warning information of discharge;
The too small performance analysis judgment processing operation of described discharge may further comprise the steps:
(a) described data acquiring and recording module is in advance hour to be the discharge data of the preset fate of the real-time saved system of unit;
(b) when each hour finishes, read hour discharge data of section at the same time of the systemic presupposition fate of being preserved, and calculate its average current value;
(c) will this average current value and current hour discharge data compare;
(d) if current hour discharge data less than average current value, and both differences are greater than the error allowed band of systemic presupposition, it is too small unusual then to be judged to be the water yield, and produces the too small warning information of discharge;
(3) data after described data acquiring and recording module will gather and analyze are sent to described long-distance monitoring and alarming terminal through described data information transfer module and wireless data communication network;
(4) subsequent treatment of condition monitoring and alarm condition report is carried out at described long-distance monitoring and alarming terminal according to received data.
Simultaneously, this realization is carried out in the method for wireless diagnostics and fault remote alarms further comprising the steps of to the Electromagnetic Flow appearance in the tap water supply pipe network:
(5) control information of being sent according to the long-distance monitoring and alarming terminal that receives through described wireless data communication network of described data information transfer module is carried out corresponding action and is handled or information-reply, specifically may further comprise the steps:
(a) described data information transfer module receives the control information that send at described long-distance monitoring and alarming terminal through described wireless data communication network, and delivers to the CPU in the described data acquiring and recording module;
(b) described CPU judges whether the information that the long-distance monitoring and alarming terminal is sent includes management control character information;
(c), then ignore this information and withdraw from if not; If then judge the type and the content of this order;
(d) type and the content of described CPU through this order carry out that corresponding action is handled or successively through described data information transfer module and wireless data communication network to described long-distance monitoring and alarming terminal return information.
Simultaneously, the Electromagnetic Flow appearance in the tap water supply pipe network to be carried out the control information in the method for wireless diagnostics and fault remote alarms be short message in this realization.
In the middle of reality was used, tap water Electromagnetic Flow appearance remote monitoring and warning system of the present invention mainly was made up of data acquiring and recording module and two parts of data information transfer module, and its structure sees also Fig. 1 and shown in Figure 3.
The principle of work of system is following:
Single-chip data acquisition system is mainly gathered the simulating signal (instantaneous delivery) of flow instrument output, pulse signal (water yield) and switching value signal.Under the normal condition; Acquisition system is with the water yield signal accumulative total and the preservation that collect; Detect the variation of instantaneous delivery and switching value input signal simultaneously, when obtaining suspicious datas such as flow or fault, start the TC35I module at once; Send the good PDU Chinese short message content of compiling in advance, in time notify the flow instrument managerial personnel.When single-chip microcomputer generation serial is interrupted; Single-chip microcomputer then starts the TC35I module; Obtain the content and the phone number of note, through the information content, data such as the flow in the acquisition system, the water yield, switching value, historical record are carried out the TEXT coding according to content; Send to managerial personnel through the GSM network, managerial personnel can in time know the operating relevant information of flow instrument like this.
The hardware circuit of system comprises:
Instantaneous delivery input, the input of the pulse water yield, the input of UPS signal, fault-signal input, signal output, RS232 serial line interface, power module (comprising battery), TC35I, house dog, storer.Schematic block circuit diagram sees also shown in Figure 2.
The data acquiring and recording module:
The interface unit of the flow instrument data of being gathered among the present invention comprises: instantaneous delivery input (10 A/D analog quantity inputs; The range parameter program is adjustable), pulse water yield input (incoming frequency: 20KHZ), the input of UPS signal and fault-signal input (common IO input, incoming frequency 5HZ).These signal demands supply system call through single-chip microcomputer collection, quantification back.
The data information transfer module:
The data information transfer module can be gsm wireless modulator-demodular unit (TC35I), supports the technical grade gsm module of Chinese short message breath, comprises the reception and the transmission of note.It is operated in EGSM900 and GSM1800 two-band, and power range is 3.3～5.5V, but transferring voice and data-signal, and power consumption is respectively 2W and 1W at EGSM900 (4 types) and GSM (1 type).Be connected SIM card reader and antenna through interface connector respectively with antenna connector.The data-interface of data information transfer module (CMOS level) but through AT order transmitted in both directions instruction and data, optional baud rate is 300～115K bps, auto-baud is 1.2～115kbps.It supports the short message SMS (short message service) of TEXT and PDU form, can realize restarting and fault recovery through AT order or cut-off signals.The data information transfer module is made up of supply module (ASIC), Flash, ZIF connector, antennal interface, transmitter module and BBP 6 parts, sees also shown in Figure 3.As the core of TC35I, the voice-and-data signal at BBP main processing GSM terminal, and contained all the analog-and digital-functions in the cellular radio equipment.Under the prerequisite that does not need the additional hardware circuit, can support the coding of FR, HR and EFR voice channel.
The data input/output interface of TC35I is actually an asynchronous serial transceiver, meets ITU-T RS-232 interface standard.
It has fixing parameter format: 8 bit data positions and 1 position of rest, no parity check position.The baud rate scope is 300bps～115kbps, and the hardware handshaking signal is used RTS0/CTS0, and Xon/Xoff is used in the software flow control, CMOS level, the AT Command Set of support standard.TC35I is exactly to rely on 16～23 data I/O with extraneous communicating by letter, and can use fully also can certain applications, and the design only has been to use the 18-RXD0,19TXD0 of the inside as input and output.Make the TC35I operate as normal must start TC35I, a low level of ignition lead IGT of promptly giving control line 15 earlier greater than 100ms.
Watchdog circuit (WDT) is a counter of operation automatically; When it can produce reset signal when counter overflows; WDT to those systems that are vulnerable to interference voltage fluctuation or electric discharge phenomena influence of great use, under the situation of program fleet, WDT can make user program break away from up-set condition.Power module mainly is for hardware such as the charging of TC35I modular battery, single-chip microcomputer, storeies energy to be provided.Storer mainly is used for storing needs the information and data of preserving, and prevents that power down from losing.
The software design of system mainly comprises wireless receiving and the transmission etc. of collection and the data of data.
1, AT order analysis
Module is controlled through the AT order, and AT order (AT command) is at first released by Hayes company, becomes the command language system that standard is adopted by all modem manufacturers now.Every order is with letter " AT " beginning.AT followed letter and number is represented concrete function, and the AT order of the modulator-demodular unit of different manufacturers produce is also incomplete same.All AT orders finish with carriage return < CR>always with the AT beginning.
The command interface that the TC35I module provides meets GSM07.05 and GSM07.07 standard.The ATcommand interface that defines among the GSM07.07 provides the general-purpose interface between a kind of mobile platform and the DTE; GSM07.05 has done specified in more detail to short message.But the data port of TC35I is supported TEXT and two kinds of forms of PDU through AT order transmitted in both directions instruction and data.When the short message module is received the short message that network sends, can send Indication message through serial ports, DTE can send various command to gsm module.AT instruction in SMS is relevant is as shown in table 1 below.
The AT instruction that table 1 is relevant with SMS
| The AT order | Function |
| AT+CMGC | Send an SMS command |
| AT+CMGD | The short message of deletion card internal memory, indexing parameter 0 ~ 19 expression, deletion appointed information |
| AT+CMGF | Select short message format: 0 is PDU; 1 is text |
| AT+CMGL | List the short message format in the SIM |
| AT+CMGR | Read SMS message |
| AT+CMGS | Send SMS message |
| AT+CMGW | In the SIM internal memory, write and wait the short message sent out |
| AT+CMGS | From the SIM internal memory, send SMS message |
| AT+CNMI | New SMS message indications |
| AT+CPMS | Select the short message internal memory |
| AT+CSCA | SMS service center address |
| AT+CSCB | AT+CSCB Select cell broadcast messages |
| AT+CSMP | Text estrangement department parameter is set |
2, the coding of note:
Send note commonly used be encoded to TEXT and protocol Data Unit PDU (protocol data unit) pattern.Use TEXT pattern gimmick note code simple, implement very easily, but maximum shortcoming is to send Chinese short message; And the PDU pattern is not only supported Chinese short message, also can send English note.PDU pattern transmitting-receiving note can be used these 3 kinds of codings of 7-BIT, 8BIT and UCS2.The 7-BIT coding is used to send common ascii character; The 8BIT coding is generally used for sending data-message; The UCS2 coding is used to send the Unicode character.Adopted TEXT coding rule and PDU to use coding rule simultaneously according to actual conditions this paper.
The step that note is sent and received:
(1) at first GSM Modem is carried out initialization, input ATZ is as if success, and system will return OK
(2) short message service center's number is set then, such as Shanghai be+8613800210500, it is provided with as follows:
AT+CSCA="+8613800210500 " (sms center); Notice that if the short message number is changed, TC35I need restart.
(3) (it is that the TEXT pattern is sent that the value of back is 1 note transmission form: AT+CMGF=X to be set; 0 with the transmission of PDU pattern-coding).
(4) example of note transmission
1. the TEXT pattern is sent
" hello " is example with transmission information, and it is following to be sent to number 13400123456 its forms:
AT+CMGS＝“13400123456”
>
hello<^z>
The input prompt symbol of wherein: ">" replying for system; " hello " text message for sending; " ^z " is that Ctrl+Z representes EOI.
2. the PDU pattern is sent
With transmission information " hello " is example, and it is following to be sent to number 13400123456 its forms:
AT+CMGS=18<CR>
>
0011000B813104103254F60008A9044F60597D<＾z>
The input prompt symbol of wherein: ">" replying for system; " ^z " is that Ctrl+Z representes EOI; " 18 " are PDU length, and length does not comprise first byte 00 in the PDU data.Analysis to each data field is as shown in table 2 below.
Table 2PDU format analysis
| Data | Describe |
| 00 | Short message service number length, service centre's number of giving tacit consent in the SIM is used in 00 representative |
| 11 | The PDUtype representative value is 11 |
| 00 | The short message reference is defaulted as 00 |
| 0B | The length of called number |
| 81 | The type of called number, 81 is domestic version, 91 is international style |
| 3104103254F6 | Passed through the displacement processing, number is " 13400123456 ", and " F " is complement code |
| 00 | The agreement sign is generally 00, common GSM point to point system |
| 08 | The user profile coded system, 08 is Chinese Unicode coding |
| A9 | Refer to the term of validity of short message, A9 represents one day |
| 04 | User's content of short message length |
| 4F60597D | Through the Unicode sign indicating number of shifting processing, " you " are 604F, and " good " is 7D59 |
(5) read short message, instruct to be AT+CMGR=X (X is the memory location of note).The note display mode is set to directly send show in native system, instruct to be AT+CNMI=2, and 2,, 1.When TC35I receives short message, directly single-chip microcomputer is exported in the content transmission and read.
3, software design
Command messages is sent and received to the real-time collection of the main systematic initialization of the function of Design of System Software, flow instrument data, the short message of data message.Its flow process sees also shown in Figure 4.
The initialization of system comprises the setting of timer, the setting of counter, the setting of A/D analog input data acquisition, the setting of baud rate, the initialization of TC35I etc.
Data acquisition is exactly the instantaneous delivery of gathering the Electromagnetic Flow appearance, integrated flow, running status, power supply detection, ups power operation detection etc.; Under the normal condition with the integrated flow that collects per diem/month the storage; For query calls; (when power supply was lost, system automatically switched to battery operated pattern) then sent the Chinese early warning note through the PDU coding at once when collecting fault-signal or loss of power, informs that in time managerial personnel handle.
The timed sending data be regularly a certain moment of one day as the time section, the water yield data of statistics and transmitted traffic appearance, i.e. timing remote meter reading.
The note that TC35I receives sends system handles to through microcontroller serial port; Have no progeny in system's serial ports and judge whether this note is the control character that managerial personnel send; If do not have control character then ignore this message; If control character is arranged then judge this order, and make action or reply needed data according to this order, because of the data of replying bigger; So transmit message with code with the TEXT coded system, the note transition translation that the switching software of managerial personnel's mobile phone through this system customization will contain code comes out to supply to check.
Remote monitoring and warning system of the present invention can write down the water yield and Various types of data accurately; Can send warning message timely, and realize remote meter reading, this system stability is reliable; Can effectively replace the manual inspection of flow instrument and the work of checking meter every day, the work efficiency that improves greatly.
Adopted above-mentioned tap water Electromagnetic Flow appearance remote monitoring and warning system and method thereof, owing to wherein utilize the gsm communication module as the telecommunication media, thus make supervisory system can pass through GSM public network information platform; Send to managerial personnel to the various types of signal of Electromagnetic Flow appearance and water yield accumulative total information; Note instruction that simultaneously also can the receiving management personnel, and do answer, thus make managerial personnel in time grasp the duty and the water yield information of Electromagnetic Flow appearance; Improved the efficiency of management of Electromagnetic Flow appearance greatly; The timely discovery that helps fault handles, thereby realized the monitoring of the duty of Electromagnetic Flow appearance in the water supply industry through wireless network diagnostic monitoring, record, pipe network water supply condition monitoring and fault remote alarms and online data thereof, and is simple in structure; Highly effective; Realize that cost is lower, stable and reliable working performance, the scope of application are comparatively extensive.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (18)
1. tap water Electromagnetic Flow appearance remote monitoring and warning system is characterized in that described system comprises:
The data acquiring and recording module is connected with corresponding Electromagnetic Flow appearance, gathers the running status output signal of this Electromagnetic Flow appearance, and with the running status output signal accumulative total and the preservation that collect, the while is this running status variation of output signals of monitoring in real time;
The data information transfer module; Be connected with corresponding data acquiring and recording module; And be connected with the long-distance monitoring and alarming terminal through wireless data communication network, running status is exported signal and/or the monitoring alarm signal is sent to described long-distance monitoring and alarming terminal.
2. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 1 is characterized in that, described running status output signal comprises instantaneous flow rate signal, water yield signal and switching value signal.
3. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 2 is characterized in that described instantaneous flow rate signal is a simulating signal.
4. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 2 is characterized in that described water yield signal is a pulse signal.
5. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 2; It is characterized in that; Described data acquiring and recording module comprises CPU, instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit and memory cell; Described CPU all is connected with the data information transfer module with described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit, memory cell respectively, and described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit all are connected with described Electromagnetic Flow appearance.
6. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 5 is characterized in that, described instantaneous delivery input interface unit is 10 adjustable A/D analog quantity input interface units of range parameter program.
7. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 5 is characterized in that the incoming frequency of described pulse water yield input interface unit is 20KHz.
8. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 5 is characterized in that the incoming frequency of described UPS signal input interface unit and fault-signal input interface unit is 5Hz.
9. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 5 is characterized in that described watchdog unit is a counter circuit.
10. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 1; It is characterized in that; Described data information transfer module comprises power supply unit, Flash storer, ZIF connector, antennal interface unit, transmitter unit and BBP; Described data acquiring and recording module inserts described wireless data communication network through described ZIF connector, BBP, transmitter unit, antennal interface unit successively; Described Flash storer is connected with described BBP, and described power supply unit all is connected with transmitter unit with described BBP, ZIF connector respectively.
11. tap water Electromagnetic Flow appearance remote monitoring and warning system according to claim 10 is characterized in that described BBP is the GSM BBP, described wireless data communication network is the gsm wireless communication network.
12. a method that realizes the Electromagnetic Flow appearance in the tap water supply pipe network is carried out wireless diagnostics and fault remote alarms based on the described system of claim 1 is characterized in that described method may further comprise the steps:
(1) system carries out initialization operation;
(2) described data acquiring and recording module is carried out data acquisition and data analysis processing operation to the Electromagnetic Flow appearance that is connected;
(3) data after described data acquiring and recording module will gather and analyze are sent to described long-distance monitoring and alarming terminal through described data information transfer module and wireless data communication network;
(4) subsequent treatment of condition monitoring and alarm condition report is carried out at described long-distance monitoring and alarming terminal according to received data.
13. the method for wireless diagnostics and fault remote alarms is carried out in realization according to claim 12 to the Electromagnetic Flow appearance in the tap water supply pipe network; It is characterized in that; Described data acquiring and recording module comprises CPU, instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit and memory cell; Described CPU all is connected with the data information transfer module with described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit, signal output interface unit, RS232 serial interface unit, power control unit, watchdog unit, memory cell respectively; And described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit all are connected with described Electromagnetic Flow appearance; Described system carries out initialization operation, may further comprise the steps:
(11) CPU in the described data acquiring and recording module is carried out timer foundation and initialization setting;
(12) described CPU is carried out counter foundation and initialization setting;
(13) described instantaneous delivery input interface unit, pulse water yield input interface unit, UPS signal input interface unit, fault-signal input interface unit carry out the initialization setting of A/D analog input data acquisition initialization setting and baud rate;
(14) described data information transfer module is carried out the initialization setting.
14. the method for wireless diagnostics and fault remote alarms is carried out in realization according to claim 13 to the Electromagnetic Flow appearance in the tap water supply pipe network; It is characterized in that; Described data acquiring and recording module is carried out the data acquisition process operation to the Electromagnetic Flow appearance that is connected, and is specially:
Instantaneous delivery input interface unit in the described data acquiring and recording module is gathered the instantaneous flow rate signal in the described Electromagnetic Flow appearance; Described pulse water yield input interface unit is gathered the integrated flow signal in the described Electromagnetic Flow appearance; The ups power operation detection information in the described Electromagnetic Flow appearance is gathered in described UPS signal input interface unit; Described fault-signal input interface unit is gathered the running state information in the described Electromagnetic Flow appearance.
15. the method for wireless diagnostics and fault remote alarms is carried out in realization according to claim 14 to the Electromagnetic Flow appearance in the tap water supply pipe network; It is characterized in that; Described data acquiring and recording module is carried out data analysis to the Electromagnetic Flow appearance that is connected and is handled operation; Comprise excessive performance analysis judgment processing operation of discharge and the too small performance analysis judgment processing operation of discharge, the excessive performance analysis judgment processing operation of described discharge may further comprise the steps:
(21) described data acquiring and recording module is in advance hour to be the discharge data of the preset fate of the real-time saved system of unit;
(22) when each hour finishes, read hour discharge data of section at the same time of the systemic presupposition fate of being preserved, and calculate its average current value;
(23) will this average current value and current hour discharge data compare;
(24) if current hour discharge data greater than average current value, and both differences are greater than the error allowed band of systemic presupposition, it is excessive unusual then to be judged to be the water yield, and produces the excessive warning information of discharge;
The too small performance analysis judgment processing operation of described discharge may further comprise the steps:
(25) described data acquiring and recording module is in advance hour to be the discharge data of the preset fate of the real-time saved system of unit;
(26) when each hour finishes, read hour discharge data of section at the same time of the systemic presupposition fate of being preserved, and calculate its average current value;
(27) will this average current value and current hour discharge data compare;
(28) if current hour discharge data less than average current value, and both differences are greater than the error allowed band of systemic presupposition, it is too small unusual then to be judged to be the water yield, and produces the too small warning information of discharge.
16. realization according to claim 12 is carried out the method for wireless diagnostics and fault remote alarms to the Electromagnetic Flow appearance in the tap water supply pipe network, it is characterized in that, and is further comprising the steps of in the described method:
(5) control information of being sent according to the long-distance monitoring and alarming terminal that receives through described wireless data communication network of described data information transfer module is carried out corresponding action and is handled or information-reply.
17. realization according to claim 16 is carried out the method for wireless diagnostics and fault remote alarms to the Electromagnetic Flow appearance in the tap water supply pipe network, it is characterized in that described step (5) specifically may further comprise the steps:
(51) described data information transfer module receives the control information that send at described long-distance monitoring and alarming terminal through described wireless data communication network, and delivers to the CPU in the described data acquiring and recording module;
(52) described CPU judges whether the information that the long-distance monitoring and alarming terminal is sent includes management control character information;
(53), then ignore this information and withdraw from if not; If then judge the type and the content of this order;
(54) type and the content of described CPU through this order carry out that corresponding action is handled or successively through described data information transfer module and wireless data communication network to described long-distance monitoring and alarming terminal return information.
18. realization according to claim 16 is carried out the method for wireless diagnostics and fault remote alarms to the Electromagnetic Flow appearance in the tap water supply pipe network, it is characterized in that described control information is a short message.
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| CN2012102662144A CN102768051A (en) | 2012-07-30 | 2012-07-30 | Remote monitoring and warning system and method for electromagnetic flow meter of tap water |
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| CN2012102662144A CN102768051A (en) | 2012-07-30 | 2012-07-30 | Remote monitoring and warning system and method for electromagnetic flow meter of tap water |
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| CN103399538A (en) * | 2013-07-18 | 2013-11-20 | 华南理工大学 | Heterogeneous network communication-based water supply network monitoring and information service system and monitoring method |
| CN104155926A (en) * | 2014-05-29 | 2014-11-19 | 江苏商达水务有限公司 | Remote auto alarm for rural micro-power sewage treatment facility |
| CN104316124A (en) * | 2014-10-17 | 2015-01-28 | 扬州恒信仪表有限公司 | Remote water meter monitoring system and remote water meter monitoring method |
| CN105807735A (en) * | 2014-12-31 | 2016-07-27 | 比亚迪股份有限公司 | Charging station system and control method thereof |
| CN112082092A (en) * | 2020-09-22 | 2020-12-15 | 苏州先驰仪表有限公司 | Monitoring system and monitoring method based on flowmeter |
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