CN100440267C - Marking number setting method and wireless meter reading system employing thee the same - Google Patents

Marking number setting method and wireless meter reading system employing thee the same Download PDF

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CN100440267C
CN100440267C CNB2005100355118A CN200510035511A CN100440267C CN 100440267 C CN100440267 C CN 100440267C CN B2005100355118 A CNB2005100355118 A CN B2005100355118A CN 200510035511 A CN200510035511 A CN 200510035511A CN 100440267 C CN100440267 C CN 100440267C
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control chip
circuit
tongue tube
identification number
magnetic field
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CN1885364A (en
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雷兆军
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Abstract

The present invention relates to a method for setting mark numbers. The present invention comprises the following steps: (a), magnetic fields around a reed switch of an access circuit are changed, and the reed switch is closed or broken; (b), the reed switch input pulse generated by the closing or the breaking of an input port of a control chip; (c), the control chip generates mark numbers and stores the mark numbers according to the input pulse. The present invention also provides a wireless meter reading system by adopting the method for setting the mark numbers. The present invention sets the mark numbers by the pulse generated by the closing or the breaking of the reed switch, simplifies the arrangement of the mark numbers, and saves the setting cost of the mark numbers.

Description

Identification number method to set up and adopt the wireless kilowatt meter reading-out system of this method
Technical field
The invention belongs to electronic technology field, particularly a kind of wireless kilowatt meter reading-out system identification method and wireless kilowatt meter reading-out system.
Background technology
The long-range counting of making a copy of water meter, ammeter, gas meter (below be referred to as gauging table), promptly remote meter reading is the major issue of modern estate management.From the communication modes branch, there are bus (or special line) communication, carrier communication and Fixed Telephony in existing remote meter reading method and system.The system of bus (or special line) communication in force, each user must connect the control center of many dedicated telephone lines to remote meter reading, so the installation of system and realization complexity very.In addition, the potential expense of the long-time maintenance of dedicated telephone line and maintenance is bigger.The signal quality of carrier communication system and antijamming capability are subjected to the influence of concrete power network environment very big, and data transmission quality is lower.The system of bus (or special line) communication and the system of carrier communication also need to be equipped with the complicated coding of a cover and decoding scheme is realized distinguish, and the failure factor that this has also increased system has reduced the reliability of system.In the system of Fixed Telephony, because Modern Family's phone uses frequently, the success ratio of the incoming call of checking meter is lower, and communication efficiency can not guarantee.Chinese patent CN1304030A disclosed " radio network automatic meter transcription device ", it makes N pulse meter be connected with a data collector by Star network. and data acquisition unit is connected with the radio station by the ordinate network, centralized computer sends instruction by center station, copies and accepts the data of respectively showing subnet.This system is code of each table definition, uses this code to distinguish the corresponding data of user side.The method of this remote meter reading and remote meter reading device have been avoided the drawback of aforementioned several system and methods, but need the radio station equipment of configure dedicated, and the spending of system is bigger.
In addition, above-mentioned kilowatt meter reading-out system is only applicable to the new gauging table of installing, and then can't transform for existing meter system, or improvement cost is high.
In addition, also has a kind of wireless kilowatt meter reading-out system, the data that it gathers gauging table at the independent installation data acquisition terminal of gauging table end, and, realize communication by modes such as infrared ray, radiowaves between data collection station and the handheld terminal by concentrate (copy and get) that handheld terminal is realized above-mentioned continuous data.In order to distinguish different data collection stations, be necessary for each data collection station a unique identification number (ID) is set.In order to prevent that the user from changing (or changing by mistake) identification number, the identification number of data collection station is set by specific handheld terminal generally.Therefore, adopt two-way communication between data collection station and the handheld terminal, promptly in data collector, comprise a receiver module and a sending module, to receive the identification number setting command respectively and to send meter data.Like this, just increased the cost of whole kilowatt meter reading-out system greatly.
Summary of the invention
The objective of the invention is to, a kind of identification number method to set up is provided and adopts the wireless kilowatt meter reading-out system of this method, solve the cost problem of higher that produces owing to bidirectional transmit-receive between existing data collection station and the handheld terminal.
Technical scheme of the present invention is, a kind of identification number method to set up is provided, and may further comprise the steps:
(a) the tongue tube surrounding magnetic field by magnetic field converting means change place in circuit makes the closed or disconnection of described tongue tube;
(b) described tongue tube will be owing to input end closed or the pulse input control chip that disconnection produces;
(c) described control chip generates identification number according to the pulse of input, and the identification number of described generation is stored in storage unit.
In the above-mentioned identification number method to set up, also comprise unlatching and the closed step that changes magnetic field by the control electromagnet.
In the above-mentioned identification number method to set up, when tongue tube described in the step (b) is closed to the control chip input low level, when tongue tube disconnects to the control chip input high level.
In the above-mentioned identification number method to set up, when tongue tube described in the step (b) is closed to the control chip input high level, when tongue tube disconnects to the control chip input low level.
The present invention also provides a kind of wireless kilowatt meter reading-out system that identification number is set by said method, comprise and be installed on gauging table with the data collection station of recording gauge scale flow and the handheld terminal that reads described data collection station data, described data collection station comprises control chip, the storage unit that is connected with control chip, and the tongue tube that is connected with described control chip input end of end, described tongue tube two ends connect different electromotive forces respectively, described control chip is logical with tongue tube, the pulse that stopping pregnancy is given birth to transfers identification number to and is stored in storage unit, and described handheld terminal comprises the magnetic field converting means that generates the variation magnetic field or is connected with the magnetic field converting means.
In the above-mentioned wireless kilowatt meter reading-out system, described data collection station also comprises the data acquisition circuit the pulse signal of gauging table input being counted, encodes and export digital signal, digital signal is modulated to the modulation circuit of set specific frequency signal and the radiating circuit that frequency signal is sent with wireless, described data acquisition circuit is connected with control chip, and wherein said data acquisition circuit, modulation circuit, radiating circuit connect successively.
In the above-mentioned wireless kilowatt meter reading-out system, described data acquisition circuit is connected with control chip, is counted, encodes, stores and exported by the control chip pulse signals.
In the above-mentioned wireless kilowatt meter reading-out system, described radiating circuit comprises oscillatory circuit, frequency multiplier, frequency selector, amplifying circuit, match circuit and the antenna that connects successively.
In the above-mentioned wireless kilowatt meter reading-out system, described magnetic field converting means comprises electromagnet.
In the above-mentioned wireless kilowatt meter reading-out system, described handheld terminal comprises receiving circuit and decoding circuit, described receiving circuit receives the radio signal that described data collection station sends, convert it to and the corresponding signal output of the coded digital signal of described data acquisition circuit output, decoding circuit is a meter data with this signal decoding.
Identification number method to set up of the present invention and adopt the wireless kilowatt meter reading-out system of this method, the pulse that the break-make by tongue tube produces realizes the setting of identification number, has simplified the identification number setting, and has saved the cost that identification number is provided with.
Description of drawings
Fig. 1 is the structural representation of the data collection station of wireless kilowatt meter reading-out system of the present invention.
Fig. 2 is the control chip among Fig. 1 and the connection diagram of tongue tube.
Fig. 3 is the structural representation of the handheld terminal of wireless kilowatt meter reading-out system of the present invention.
Fig. 4 is the connection diagram of handheld terminal and magnetic field converting means.
Fig. 5 is the circuit diagram of an embodiment of the data collection station of Fig. 1.
Fig. 6 is the circuit diagram of an embodiment of the handheld terminal of Fig. 3.
Embodiment
As shown in Figure 1, the data collection station 10 of wireless kilowatt meter reading-out system of the present invention includes storage unit 11, data acquisition circuit 12, tongue tube 13, control chip 14, control circuit 15, modulation circuit 16, radiating circuit 17 and antenna 18.Wherein storage unit 11, data acquisition circuit 12, tongue tube 13, control circuit 15 and modulation circuit 16 are connected with control chip 14 respectively, 17 of radiating circuits that is connected with antenna 18 are connected with modulation circuit 16, and control circuit also is connected with radiating circuit 17 with modulation circuit 16 respectively in addition.
Data acquisition circuit 12 combines with control chip 14, reads the data of gauging table.In conjunction with Fig. 5, in the present embodiment, data acquisition circuit 12 comprises two tongue tube S1, S2, and these two tongue tubes are installed near the pointer of gauging table dial plate, when the pointer (carrying magnetic) of gauging table forwards near tongue tube, and the tongue tube closure; When the pointer of gauging table forwarded to away from tongue tube, tongue tube disconnected.Export pulse by tongue tube disconnection over the ground and closed the generation like this.Control chip 14 reads above-mentioned pulse by input port, and this pulse is counted, encoded, and generates digital signal and stores storage unit 11 into, and digital signal is exported.
Modulation circuit 16 directly uses from the digital signal (identification number that comprises meter data and data collection station) of control chip 14 inputs frequency modulation (PFM) is carried out in the vibration that the crystal oscillating circuit the radiating circuit 17 produces.Radiating circuit 17 then sends the frequency that modulates via antenna 18.Radiating circuit 17 comprises oscillatory circuit, frequency multiplier, frequency selector, amplifying circuit, the match circuit (not shown in figure 1) that connects successively.The signal frequency multiplication after frequency modulation (PFM) that frequency multiplier will be imported, the output higher hamonic wave, frequency selector carries out bandpass filtering to the higher hamonic wave of input with certain centre frequency, amplifying circuit amplifies filtered signal, and the signal after the amplification is coupled to antenna 18 and is launched by antenna 18 through match circuit.
Control circuit 15 is 17 power supplies of modulation circuit 16 and radiating circuit under the control of control chip 14, when needs carry out making power connection when data send, and power supply is disconnected when not sending.Tongue tube 13 is connected with the input port of control chip 14, is used to realize that the identification number (ID) of data collection station 10 is provided with, to distinguish different gauging tables.
Above-mentioned data collection station 10 only is an exemplary arrangement of the present invention, and data collection station 10 of the present invention is not limited to said structure, and it also can adopt existing similar techniques to realize.
As shown in Figure 2, be the connection diagram of tongue tube among Fig. 1 13 with control chip 14.One end ground connection of tongue tube 13, another termination constant voltage (VCC), the high voltage end of tongue tube 13 also is connected with the input port of control chip 14 in addition.Certainly, the two ends of tongue tube 13 also are not limited to above-mentioned connected mode, as long as two ends have electric potential difference.When tongue tube 13 is closed under the action of a magnetic field, tongue tube 13 is to the control chip input low level, when tongue tube 13 disconnects then to control chip input high level (if the connected mode difference, then the high-low level of input also can be on the contrary when tongue tube disconnects or be closed).By the closure and the disconnection of use changes of magnetic field control tongue tube 13, thus the input pulse of formation control chip 14 input ports.Control chip 14 is encoded according to the pulse of tongue tube 13 inputs, thereby generates the identification number of data collection station 10, and stores identification number into storage unit 11.
Tongue tube 13 need with data acquisition circuit 12 in the mutual magnetic field shielding of tongue tube, thereby avoid magnetic interference, influence the accuracy of data acquisition.
As shown in Figure 3, handheld terminal 30 can be the portable terminal with simple data processing power, for example PDA.This handheld terminal 30 comprises antenna 35, receiver module 31 and decoder module 32.After antenna 35 receptions of the radio signal that data collection station 10 sends by handheld terminal 30, convert it to and output to the corresponding signal output of the coded digital signal of modulation circuit 16 by receiver module 31, the decoding program of decoding circuit 32 by inside carries out data transmission with the mode corresponding with cataloged procedure in the data collection station 10 back of decoding by the communication line (not shown) with this signal.As shown in Figure 6, the receiver module 31 in the present embodiment is made up of chip CC1020 and peripheral circuit thereof, and decoding circuit 32 then is made up of chip MAG8 and peripheral circuit thereof.That shown in Figure 6 only is an embodiment of receiver module 31 and decoder module 32, and it also can use other implementations well known in the art.
As shown in Figure 4, long-distance meter-reading system of the present invention also comprises magnetic field converting means 40.This magnetic field converting means 40 can be connected with handheld terminal 30 by the serial ports (or Peripheral Interface of other types) on the handheld terminal 30, comes the magnetic field conversion of controlling magnetic field converting means 40 by handheld terminal 30.Magnetic field conversion terminal 40 comprises electromagnet 41, by disconnecting or connecting electromagnet 41, makes the magnetic field that produces conversion on every side of magnetic field converting means 40.For example, when electromagnet 41 places in circuit, has magnetic field around the magnetic field converting means 40; And electromagnet 41 does not have magnetic field when disconnecting around the magnetic field converting means 40.
In addition, magnetic field converting means 40 also can be built in handheld terminal.And the magnetic field converting means also is not limited to said structure, as long as can produce conversion magnetic field.
Identification number method to set up of the present invention is as follows: when the tongue tube 13 of magnetic field converting means 40 close data collection stations 10 as shown in Figure 2, can control the break-make of tongue tube 13 by the break-make of the electromagnet in the controlling magnetic field converting means 40 41, thereby change the pulse that tongue tube 13 produces, to carry out the identification number setting of data collection station 10.

Claims (10)

1, a kind of identification number method to set up is characterized in that, may further comprise the steps:
(a) the tongue tube surrounding magnetic field by magnetic field converting means change place in circuit makes the closed or disconnection of described tongue tube;
(b) described tongue tube will be owing to input end closed or the pulse input control chip that disconnection produces;
(c) described control chip generates identification number according to the pulse of input, and the identification number of described generation is stored in storage unit.
2, identification number method to set up according to claim 1 is characterized in that, also comprises unlatching and the closed step that changes magnetic field by the control electromagnet.
3, identification number method to set up according to claim 1 is characterized in that, when tongue tube described in the step (b) is closed to the control chip input low level, when tongue tube disconnects to the control chip input high level; When perhaps described tongue tube is closed to the control chip input high level, when tongue tube disconnects to the control chip input low level.
4, identification number method to set up according to claim 1 is characterized in that, comprises that also control chip is encoded and modulated into the step that set specific frequency signal is gone out via antenna transmission with meter data and the identification number of gathering.
5, a kind of by as among the claim 1-4 as described in each method the wireless kilowatt meter reading-out system of identification number is set, comprise and be installed on gauging table with the data collection station of recording gauge scale flow and the handheld terminal that reads described data collection station data, it is characterized in that, described data collection station comprises control chip, the storage unit that is connected with control chip, and the tongue tube that is connected with described control chip input end of end, described tongue tube two ends also connect different electromotive forces respectively, described control chip is logical with tongue tube, the pulse that stopping pregnancy is given birth to transfers identification number to and is stored in storage unit, and described handheld terminal comprises the magnetic field converting means that generates the variation magnetic field or is connected with the magnetic field converting means.
6, wireless kilowatt meter reading-out system according to claim 5, it is characterized in that, described data collection station also comprises the data acquisition circuit the pulse signal of gauging table input being counted, encodes and export digital signal, digital signal is modulated to the modulation circuit of set specific frequency signal and the radiating circuit that frequency signal is sent with wireless, described data acquisition circuit is connected with control chip, and wherein said data acquisition circuit, modulation circuit, radiating circuit connect successively.
7, wireless kilowatt meter reading-out system according to claim 6 is characterized in that, described data acquisition circuit is connected with control chip, is counted, encodes, stores and exported by the control chip pulse signals.
8, wireless kilowatt meter reading-out system according to claim 6 is characterized in that, described radiating circuit comprises oscillatory circuit, frequency multiplier, frequency selector, amplifying circuit, match circuit and the antenna that connects successively.
9, wireless kilowatt meter reading-out system according to claim 5 is characterized in that, described magnetic field converting means comprises electromagnet.
10, wireless kilowatt meter reading-out system according to claim 6, it is characterized in that, described handheld terminal comprises receiving circuit and decoding circuit, described receiving circuit receives the radio signal that described data collection station sends, convert it to and the corresponding signal output of the coded digital signal of described data acquisition circuit output, decoding circuit is a meter data with this signal decoding.
CNB2005100355118A 2005-06-22 2005-06-22 Marking number setting method and wireless meter reading system employing thee the same Active CN100440267C (en)

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CNB2005100355118A CN100440267C (en) 2005-06-22 2005-06-22 Marking number setting method and wireless meter reading system employing thee the same

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Application Number Priority Date Filing Date Title
CNB2005100355118A CN100440267C (en) 2005-06-22 2005-06-22 Marking number setting method and wireless meter reading system employing thee the same

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CN100440267C true CN100440267C (en) 2008-12-03

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2036311U (en) * 1988-09-15 1989-04-19 张凡 Magnetism maintaining type electromagnetic relay switch
CN2141490Y (en) * 1992-12-29 1993-09-01 彭德康 Electric pulse triggering electromagnetic valve
CN2274342Y (en) * 1995-05-23 1998-02-11 胡晓春 Electric remote transmitting watermeter reading device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2036311U (en) * 1988-09-15 1989-04-19 张凡 Magnetism maintaining type electromagnetic relay switch
CN2141490Y (en) * 1992-12-29 1993-09-01 彭德康 Electric pulse triggering electromagnetic valve
CN2274342Y (en) * 1995-05-23 1998-02-11 胡晓春 Electric remote transmitting watermeter reading device

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Assignee: Shenzhen HAC Telecom Technology Co., Ltd.

Assignor: Lei Zhaojun|Zhang Li

Contract record no.: 2011440020044

Denomination of invention: Marking number setting method and wireless meter reading system employing thee the same

Granted publication date: 20081203

License type: Exclusive License

Open date: 20061227

Record date: 20110311