CN203950432U - Automatic meter reading system, the kilowatt meter reading-out system with prepaid electricity selling function, power purchase system, power purchase system and Split pre-payment ammeter thereof based on telephone service - Google Patents
Automatic meter reading system, the kilowatt meter reading-out system with prepaid electricity selling function, power purchase system, power purchase system and Split pre-payment ammeter thereof based on telephone service Download PDFInfo
- Publication number
- CN203950432U CN203950432U CN201320877888.8U CN201320877888U CN203950432U CN 203950432 U CN203950432 U CN 203950432U CN 201320877888 U CN201320877888 U CN 201320877888U CN 203950432 U CN203950432 U CN 203950432U
- Authority
- CN
- China
- Prior art keywords
- bus
- voltage
- node
- reference source
- switch device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model discloses automatic meter reading system, there is the kilowatt meter reading-out system of prepaid electricity selling function, power purchase system, the power purchase system based on telephone service, and Split pre-payment ammeter.Ammeter and indoor terminal adopt MBUS communication, and MBUS is a kind of two-wire system communication modes, and main frame is also slave power supply by 2 connections simultaneously.When idle, MBUS bus is 24V, represents high level.Main frame sends data bit 0. slave to 12V and sends data bit 0 by increasing bus current 40mA by dragging down bus level, and slave normality average current is 10mA, if the slave fluctuation of load is larger, just there will be and sends data bit 0 by mistake.Slave part increases a current-limiting circuit, and the dash current of slave is limited in 40mA, increases slave communication success ratio.
Description
Technical field
The utility model relates to public utilities energy consumption measure and administrative skill, in more specific words it, in a general overview of the present utility model, design a kind of Split pre-payment metering or power purchase system, be directed to utility commodity (for example water, electricity, liquefied gas or life heat supply) consumption, based on the in addition communication of M-BUS bus, further, design long-range power purchase, telephone service power purchase or card prepay charging management system are applied.
Background technology
Current conventional electricity-selling system is the prepayment meter that utilizes Contact Type Ic Card or keyboard-type.The defect of the IC-card table of contact is the metering units that user easily touches table meter.User's power purchase must touch table meter, forms stealing leak or shows meter and suffer artificial destruction.Therefore, use the advantage of split type RF cassette electric energy meter to be, table meter metering units is installed in the table case of power office.User can only touch other crosspoint, and the operational order that large capacity RF card can carry a large amount of user profile and power office carries out the mutual of information.
Further, current conventional way is to control the slave load shock of M-BUS, and shortcoming is to cause the load of slave to have considerable restraint, and the communication scope of application of MBUS is little, and communication success ratio is not high.Utilize this cut-off current can well solve the impact of slave heavy duty in short-term on MBUS communication, can make MBUS communication be suitable for the slave of various loading conditions.
Utility model content
The utility model is created the power purchase operation that can realize number of ways.User can carry out long-range power purchase operation by approach such as network, note, POS machines, can realize local RF card power purchase simultaneously.When power purchase, user does not need to contact electric energy meter.The destruction that prevent user because touch table handling table case to power office and other facilities causes.
Technical scheme 1: automatic meter reading system, carry out data interaction based on M-BUS bus, in described M-BUS bus, provide direct supply, comprise+12V of described direct supply direct supply and+24V direct supply, wherein+12V direct supply provides logical zero bus voltage for the equipment of installing in M-BUS bus, 24V direct supply provides logical one bus voltage for it, it is characterized in that being equiped with in M-BUS bus: user terminal, be installed in utility commodity subscriber household indoor, be provided with display part, be used to user to indicate consumption information and cost information, and communication section, be used for the electric mutual of this user terminal and external unit, further be provided with data processing division, connect and control described display part and communication section, active instrument, is installed in utility commodity subscriber household outdoor, is provided with communication section, for and user terminal between communication, and processor, connects described communication section to obtain data message, and passive instrument, be installed in utility commodity subscriber household outdoor, be provided with communication section, for and active instrument between communication, and processor, connects described communication section to obtain data message.
In one embodiment, the electric component of described active instrument is further defined in a body, and described body comprises multiple separations accommodation section of combining, and these are separated accommodation section and are combined into difform body by the mode of clamping.
In one embodiment, in described separation accommodation section, install respectively electric component, between each electric component, be mutually electrically connected with pluggable mode, wherein, after forming a body in various combination mode, be limited its three-dimensional shape with a base again.
Technical scheme 2: the kilowatt meter reading-out system with prepaid electricity selling function, comprise automatic meter reading system claimed in claim 2, it is characterized in that described active instrument further comprises: GPRS or ZIGBEE communication section, POS equipment or the communication in addition of sale of electricity server of it and active instrument far-end, wherein said GPRS or ZIGBEE communication section are arranged on one to be separated in accommodation section, is electrically connected with the electric component of described active instrument in removable mode.
In one embodiment, on described far-end POS equipment or sale of electricity server, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
In one embodiment, described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
In one embodiment, design described power supply unit to carry out the automatic operation of DC voltage of stable node HV output: being+24V direct supply by described rectification circuit by the rectification of M-BUS bus power source, is active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
In one embodiment, described two-way switch device is selected triode; Described reference source is selected resistance.
Technical scheme 3: power purchase system, comprise automatic meter reading system claimed in claim 2, it is characterized in that described active instrument further comprises: RF communication section, the card-type device communication in addition of it and described active gauge external, wherein said RF communication section is arranged on one and separates in accommodation section, be electrically connected with the electric component of described active instrument in removable mode, wherein said RF communication section is structurally to isolate completely and infrared contact with an outside S70 radio-frequency card.
In one embodiment, on user terminal, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
In one embodiment, described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
In one embodiment, design described power supply unit to carry out the automatic operation of DC voltage of stable node HV output: being+24V direct supply by described rectification circuit by the rectification of M-BUS bus power source, is active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
In one embodiment, described two-way switch device is selected triode; Described reference source is selected resistance.
Technical scheme 4: the power purchase system based on telephone service, comprise automatic meter reading system claimed in claim 2, it is characterized in that described active instrument further comprises: 3G communication section, the base station equipment communication in addition of it and described active gauge external, wherein said 3G communication section is arranged on one and separates in accommodation section, be electrically connected with the electric component of described active instrument in removable mode, wherein carry out communication by described 3G communication section and external user mobile phone or PDA equipment, and send ciphered data information.
In one embodiment, on user terminal, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
In one embodiment, described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
In one embodiment, design described power supply unit to carry out the automatic operation of DC voltage of stable node HV output: being+24V direct supply by described rectification circuit by the rectification of M-BUS bus power source, is active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
In one embodiment, described two-way switch device is selected triode; Described reference source is selected resistance.
Technical scheme 5: Split pre-payment ammeter, it is characterized in that having comprised: indoor user terminal, be provided with display part, be used to user to indicate or inquiring energy consumption information and cost information, and communication section, further be provided with data processing division alternately for the electric of this user terminal and external unit, connect and control described display part and communication section; And outdoor power measuring terminal, be provided with communication section, be used for carrying out the transmission of electricity consumption data between user terminal, and processor, be used for metering user electricity consumption data and connect described communication section to obtain data message, wherein: the communication section of user by S70 radio-frequency card and described indoor user terminal in addition structure isolated and contacted, with transmission user assets information.
In one embodiment, further be connected multiple passive instrument with described outdoor power measuring terminal by M-BUS bus, provide direct supply by described outdoor power measuring terminal for passive instrument, comprise+12V of described direct supply direct supply and+24V direct supply, wherein+12V direct supply provides logical zero bus voltage for the equipment of installing in M-BUS bus, and+24V direct supply provides logical one bus voltage for it.
Ammeter and indoor terminal adopt MBUS communication, and MBUS is a kind of two-wire system communication modes, and main frame is also slave power supply by 2 connections simultaneously.When idle, MBUS bus is 24V, represents high level.Main frame sends data bit 0. slave to 12V to send data bit 0. slave normality average current is 10mA by increasing bus current 40mA by dragging down bus level, if the slave fluctuation of load is larger, just there will be and sends data bit 0 by mistake.Slave part increases a current-limiting circuit now.The dash current of slave is limited in 40mA.Increase slave communication success ratio.
Brief description of the drawings
Fig. 1 schematically shows the structure principle chart of the utility model system ammeter;
Fig. 2 is the structural representation of the utility model ammeter;
Fig. 3 is the circuit diagram of the utility model bus current-limiting circuit.
Embodiment
Embodiment 1: automatic meter reading system is to carry out data interaction based on M-BUS bus, in described M-BUS bus, provide direct supply, comprise+12V direct supply and+24V direct supply, wherein+12V direct supply provides logical zero bus voltage for the equipment of installing in M-BUS bus, + 24V direct supply provides logical one bus voltage for it, it is characterized in that being equiped with in M-BUS bus: user terminal, be installed in utility commodity subscriber household indoor, be provided with display part, be used to user to indicate consumption information and cost information, and communication section, be used for the electric mutual of this user terminal and external unit, further be provided with data processing division, connect and control described display part and communication section, active instrument, is installed in utility commodity subscriber household outdoor, is provided with communication section, for and user terminal between communication, and processor, connects described communication section to obtain data message, and passive instrument, be installed in utility commodity subscriber household outdoor, be provided with communication section, for and active instrument between communication, and processor, connects described communication section to obtain data message.
In one embodiment, active meter selection prepayment type intelligent ammeter, as shown in Figure 1, preferably comprise processor, select the MSP430F6736 of Siemens Company type high-speed chip, and be equipped with for it internal storage, battery management portion (pulse per second (PPS) output unit), relay drives and test section, GPRS and ZIGBEE communication section and power-on and power-off detect, stealing event detection portion, be preferably hardware or software trigger, jointly pick out the AC network to 230V with transformer and linear voltage stabilization portion, simultaneously, pick out near infrared communication and user terminal by UART port, for liquid crystal display part and LED pulse efferent, can select routine techniques to be implemented.
In one embodiment, as shown in Figure 2, these electric components of described ammeter are further defined in a body 1, and described body 1 comprises multiple separations accommodation section 4 of combining, and these are separated accommodation section 4 and are combined into difform body 1 by the mode of mutual clamping.That is to say, the wherein a kind of of the shape of body 1 is the conventional aspect shown in Fig. 2, but is not limited in this, for example can be narrower, and shorter.
In one embodiment, separating interior aforementioned electric pneumatic module (the example battery as shown in FIG. of installing respectively in accommodation section 4, GPRS address card or wireless module 3), between each electric component, be mutually electrically connected with pluggable mode, wherein after forming a body 1 in various combination mode, again with a base and outer cover plate 2 its three-dimensional shape structure of sheathed restriction in addition.
Technical scheme 2: the kilowatt meter reading-out system with prepaid electricity selling function, comprise automatic meter reading system claimed in claim 2, it is characterized in that described active instrument further comprises: GPRS or ZIGBEE communication section, POS equipment or the communication in addition of sale of electricity server of it and active instrument far-end, wherein said GPRS or ZIGBEE communication section are arranged on one to be separated in accommodation section, is electrically connected with the electric component of described active instrument in removable mode.
In one embodiment, on described far-end POS equipment or sale of electricity server, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, as shown in Figure 3, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
In one embodiment, described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
In one embodiment, design described power supply unit to carry out the automatic operation of DC voltage of stable node HV output: being+24V direct supply by described rectification circuit by the rectification of M-BUS bus power source, is active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
In one embodiment, described two-way switch device is selected triode; Described reference source is selected resistance.
Technical scheme 3: power purchase system, comprise automatic meter reading system claimed in claim 2, it is characterized in that described active instrument further comprises: RF communication section, the card-type device communication in addition of it and described active gauge external, wherein said RF communication section is arranged on one and separates in accommodation section, be electrically connected with the electric component of described active instrument in removable mode, wherein said RF communication section is structurally to isolate completely and infrared contact with an outside S70 radio-frequency card.
In one embodiment, on user terminal, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
In one embodiment, described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
In one embodiment, design described power supply unit to carry out the automatic operation of DC voltage of stable node HV output: being+24V direct supply by described rectification circuit by the rectification of M-BUS bus power source, is active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
In one embodiment, described two-way switch device is selected triode; Described reference source is selected resistance.
Technical scheme 4: the power purchase system based on telephone service, comprise automatic meter reading system claimed in claim 2, it is characterized in that described active instrument further comprises: 3G communication section, the base station equipment communication in addition of it and described active gauge external, wherein said 3G communication section is arranged on one and separates in accommodation section, be electrically connected with the electric component of described active instrument in removable mode, wherein carry out communication by described 3G communication section and external user mobile phone or PDA equipment, and send ciphered data information.
In one embodiment, on user terminal, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
In one embodiment, described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
In one embodiment, design described power supply unit to carry out the automatic operation of DC voltage of stable node HV output: being+24V direct supply by described rectification circuit by the rectification of M-BUS bus power source, is active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
In one embodiment, described two-way switch device is selected triode; Described reference source is selected resistance.
Technical scheme 5: Split pre-payment ammeter, it is characterized in that having comprised: indoor user terminal, be provided with display part, be used to user to indicate or inquiring energy consumption information and cost information, and communication section, further be provided with data processing division alternately for the electric of this user terminal and external unit, connect and control described display part and communication section; And outdoor power measuring terminal, be provided with communication section, be used for carrying out the transmission of electricity consumption data between user terminal, and processor, be used for metering user electricity consumption data and connect described communication section to obtain data message, wherein: the communication section of user by S70 radio-frequency card and described indoor user terminal in addition structure isolated and contacted, with transmission user assets information.
In one embodiment, further be connected multiple passive instrument with described outdoor power measuring terminal by M-BUS bus, provide direct supply by described outdoor power measuring terminal for passive instrument, comprise+12V of described direct supply direct supply and+24V direct supply, wherein+12V direct supply provides logical zero bus voltage for the equipment of installing in M-BUS bus, and+24V direct supply provides logical one bus voltage for it.
Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (18)
1. automatic meter reading system, carry out data interaction based on M-BUS bus, in described M-BUS bus, provide direct supply, comprise+12V of described direct supply direct supply and+24V direct supply, wherein+12V direct supply provides logical zero bus voltage for the equipment of installing in M-BUS bus, 24V direct supply provides logical one bus voltage for it, it is characterized in that being equiped with in M-BUS bus: user terminal, be installed in utility commodity subscriber household indoor, be provided with display part, be used to user to indicate consumption information and cost information, and communication section, be used for the electric mutual of this user terminal and external unit, further be provided with data processing division, connect and control described display part and communication section, active instrument, is installed in utility commodity subscriber household outdoor, is provided with communication section, for and user terminal between communication, and processor, connects described communication section to obtain data message, and passive instrument, be installed in utility commodity subscriber household outdoor, be provided with communication section, for and active instrument between communication, and processor, connects described communication section to obtain data message.
2. automatic meter reading system according to claim 1, it is characterized in that: the electric component of described active instrument is further defined in a body, described body comprises multiple separations accommodation section of combining, and these are separated accommodation section and are combined into difform body by the mode of clamping.
3. automatic meter reading system according to claim 2, it is characterized in that: in described separation accommodation section, install respectively electric component, between each electric component, be mutually electrically connected with pluggable mode, wherein, after forming a body in various combination mode, be limited its three-dimensional shape with a base again.
4. there is the kilowatt meter reading-out system of prepaid electricity selling function, it is characterized in that comprising automatic meter reading system claimed in claim 2, described active instrument further comprises: GPRS or ZIGBEE communication section, POS equipment or the communication in addition of sale of electricity server of it and active instrument far-end, wherein said GPRS or ZIGBEE communication section are arranged on one to be separated in accommodation section, is electrically connected with the electric component of described active instrument in removable mode.
5. the kilowatt meter reading-out system with prepaid electricity selling function according to claim 4, it is characterized in that: on described far-end POS equipment or sale of electricity server, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
6. the kilowatt meter reading-out system with prepaid electricity selling function according to claim 5, it is characterized in that: described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
7. the kilowatt meter reading-out system with prepaid electricity selling function according to claim 6, is characterized in that designing described power supply unit to carry out the automatic operation of DC voltage of stable node HV output:
By described rectification circuit by the rectification of M-BUS bus power source be+24V direct supply,
Be active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
8. the kilowatt meter reading-out system with prepaid electricity selling function according to claim 7, is characterized in that: described two-way switch device is selected triode; Described reference source is selected resistance.
9. power purchase system, it is characterized in that comprising automatic meter reading system claimed in claim 2, described active instrument further comprises: RF communication section, the card-type device communication in addition of it and described active gauge external, wherein said RF communication section is arranged on one and separates in accommodation section, be electrically connected with the electric component of described active instrument in removable mode, wherein said RF communication section is structurally to isolate completely and infrared contact with an outside S70 radio-frequency card.
10. power purchase system according to claim 9, it is characterized in that: on user terminal, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
11. power purchase systems according to claim 10, it is characterized in that: described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
12. power purchase systems according to claim 10, is characterized in that designing described power supply unit to carry out the automatic operation of DC voltage of stable node HV output:
By described rectification circuit by the rectification of M-BUS bus power source be+24V direct supply,
Be active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
13. power purchase systems according to claim 12, is characterized in that: described two-way switch device is selected triode; Described reference source is selected resistance.
14. power purchase systems based on telephone service, it is characterized in that comprising automatic meter reading system claimed in claim 2, described active instrument further comprises: 3G communication section, the base station equipment communication in addition of it and described active gauge external, wherein said 3G communication section is arranged on one and separates in accommodation section, be electrically connected with the electric component of described active instrument in removable mode, wherein carry out communication by described 3G communication section and external user mobile phone or PDA equipment, and send ciphered data information.
The 15. power purchase systems based on telephone service according to claim 14, it is characterized in that: on user terminal, be provided with non-polar M-BUS bus power source, in described active instrument, be provided with power supply unit, described power supply unit has comprised: rectification circuit, receiving described M-BUS bus power source rectification is+24V DC voltage to offer active instrument by node HV; Be arranged in the current-limiting circuit between described rectification circuit and economize on electricity, dynamically control the DC voltage stability of this node HV.
The 16. power purchase systems based on telephone service according to claim 15, it is characterized in that: described current-limiting circuit is provided with: be arranged at the two-way switch device between described rectification circuit and node HV, and the reference source being coupled with it, open or turn-off described two-way switch device according to the voltage of described reference source, thereby control the stable of DC voltage.
The 17. power purchase systems based on telephone service according to claim 16, is characterized in that designing described power supply unit to carry out the automatic operation of DC voltage of stable node HV output:
By described rectification circuit by the rectification of M-BUS bus power source be+24V direct supply,
Be active instrument power supply by node HV; Whether be greater than 0.7V by test benchmark source both end voltage and control the break-make of described two-way switch device, thereby realize current limliting interference to MBUS bus communication with the load shock of controlling active instrument; Wherein
In the time that node HV place current sinking is less than 35mA, the both end voltage of reference source is 0.7V, the one cut-off of two-way switch device, and another one is in magnifying state; When the electric current consuming when node HV place is greater than 35mA, reference source both end voltage is greater than 0.7V, described two-way switch device place voltage drop, and the electric current that flows through reference source reduces, and negative feedback, to reference source, reduces its electric current.
The 18. power purchase systems based on telephone service according to claim 17, is characterized in that: described two-way switch device is selected triode; Described reference source is selected resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877888.8U CN203950432U (en) | 2013-12-26 | 2013-12-26 | Automatic meter reading system, the kilowatt meter reading-out system with prepaid electricity selling function, power purchase system, power purchase system and Split pre-payment ammeter thereof based on telephone service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877888.8U CN203950432U (en) | 2013-12-26 | 2013-12-26 | Automatic meter reading system, the kilowatt meter reading-out system with prepaid electricity selling function, power purchase system, power purchase system and Split pre-payment ammeter thereof based on telephone service |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251124.2U Division CN204010298U (en) | 2013-12-26 | 2013-12-26 | Split pre-payment ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950432U true CN203950432U (en) | 2014-11-19 |
Family
ID=51892457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320877888.8U Expired - Fee Related CN203950432U (en) | 2013-12-26 | 2013-12-26 | Automatic meter reading system, the kilowatt meter reading-out system with prepaid electricity selling function, power purchase system, power purchase system and Split pre-payment ammeter thereof based on telephone service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976595A (en) * | 2016-07-19 | 2016-09-28 | 天津市炳华节能技术有限公司 | Implementing method of low-power-consumption M-BUS main station |
-
2013
- 2013-12-26 CN CN201320877888.8U patent/CN203950432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976595A (en) * | 2016-07-19 | 2016-09-28 | 天津市炳华节能技术有限公司 | Implementing method of low-power-consumption M-BUS main station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101413965B (en) | Modular assembled electrical energy meter | |
| CN201408476Y (en) | Wireless remote meter reading control system based on ZigBee technique | |
| CN104714146A (en) | Electricity meter cross-room wiring detection device and detection method thereof | |
| CN101794480A (en) | Pre-purchased power controller | |
| CN206975705U (en) | Logistics enquiring system based on Internet of Things | |
| CN203870789U (en) | Bluetooth remote-transmission metering and meter reading system | |
| CN103914966A (en) | Centralized meter reading system, prepayment electricity-selling meter-reading system, electricity-selling system and split-type prepayment electricity meter | |
| CN106569084B (en) | A kind of controllable characteristics load for the detection of cable wiring accuracy | |
| CN203950432U (en) | Automatic meter reading system, the kilowatt meter reading-out system with prepaid electricity selling function, power purchase system, power purchase system and Split pre-payment ammeter thereof based on telephone service | |
| CN107196379A (en) | A kind of portable energy-storing power supply and its rental method | |
| CN109633261A (en) | A kind of modularization multiloop metering system with communication function | |
| CN207156977U (en) | A kind of intelligent sharing charging knee based on mobile payment | |
| CN101435834A (en) | Modular assembled electrical energy meter | |
| CN204010298U (en) | Split pre-payment ammeter | |
| CN203178406U (en) | Mobile monitoring system of area branch line | |
| CN205646852U (en) | Power route dynamic management circuit | |
| CN112615213A (en) | Intelligent socket | |
| CN209265586U (en) | A kind of pre-payment type intelligent electric meter based on mobile terminal | |
| CN208006749U (en) | A kind of mono- rifle alternating-current charging piles of 40KW | |
| CN202362901U (en) | Acquisition terminal of special transformer | |
| CN206133788U (en) | Electric bicycle intelligent charging socket | |
| CN104459253A (en) | Intelligent electric meter based on network | |
| CN103413382A (en) | Household intelligent prepayment electric energy meter | |
| CN208782534U (en) | A kind of battery with communication function | |
| CN201503446U (en) | Electric energy meter capable of being modularly assembled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20201226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |