CN211555108U - MBUS master station device used in community centralized remote meter reading system - Google Patents
MBUS master station device used in community centralized remote meter reading system Download PDFInfo
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- CN211555108U CN211555108U CN202020564887.8U CN202020564887U CN211555108U CN 211555108 U CN211555108 U CN 211555108U CN 202020564887 U CN202020564887 U CN 202020564887U CN 211555108 U CN211555108 U CN 211555108U
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Abstract
The utility model discloses a MBUS master station device that is arranged in long-range system of checking meter is concentrated to community, include: a control unit for controlling the operation of the apparatus; the power supply management unit is electrically connected with the control unit and used for providing working power supply; the interface extension unit is electrically connected with the control unit and is used for connecting a plurality of MBUS slave stations; the data receiving and transmitting unit is respectively electrically connected with the control unit and the interface expansion unit, and is used for transmitting the instruction message sent by the control unit and receiving the data uploaded by the MBUS water meter; the overload protection unit is respectively and electrically connected with the control unit and the interface extension unit and is used for realizing circuit overload protection; and the alarm indicating unit is electrically connected with the control unit and is used for indicating the running state of the system. The utility model discloses can effectively improve the area load ability and the coverage area of system of checking meter, reduce the wiring cost, the structure is exquisite, easily marketization, is worth the society and widelys popularize.
Description
Technical Field
The utility model relates to a wisdom water utilities technical field especially relates to a MBUS main website device that is arranged in community's centralized remote meter reading system.
Background
With the development of scientific technology and social economy, the development of civil meters is promoted, and the data reading of all meters in a community is changed from the traditional mode of matching mechanical metering with manual on-site meter reading into community centralized remote meter reading of matching electronic metering with automatic meter reading. At present, most communities adopt RS485 community centralized meter reading systems to finish meter reading work, but the effective coverage distance of a single RS485 community centralized meter reading system is 300 meters, the coverage area is small, only 64 RS485 meters can be hung on the single RS485 community centralized meter reading system, and the wiring cost is high; on the other hand, the RS485 community centralized meter reading system comprises a power line, a ground line, a differential signal A line and a differential signal B line, the RS485 meter must be wired one by one according to the wiring sequence, the meter reading failure is caused by the wiring error, the construction difficulty is high, and the follow-up maintenance is complex.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a MBUS main website device that is arranged in the long-range system of checking meter of community concentration.
The technical scheme of the utility model as follows:
an MBUS master station device used in a community centralized remote meter reading system, comprising:
a control unit for controlling the operation of the apparatus;
the power supply management unit is electrically connected with the control unit and used for providing working power supply;
the interface expansion unit is electrically connected with the control unit and is used for connecting a plurality of MBUS slave stations;
the data receiving and transmitting unit is respectively electrically connected with the control unit and the interface expansion unit, and is used for transmitting the instruction message sent by the control unit and receiving the data uploaded by the MBUS slave station;
the overload protection unit is respectively electrically connected with the control unit and the interface extension unit and is used for realizing circuit overload protection;
and the alarm indicating unit is electrically connected with the control unit and is used for indicating the running state of the system.
Preferably, the control unit comprises a microcontroller for controlling the operation of the interface expansion unit, the data transceiving unit and the alarm indication unit;
the microcontroller adopts the singlechip that the model is STM32F401VBT 6.
Preferably, the power management unit comprises an MBUS booster circuit; the MBUS booster circuit comprises a power interface, a booster chip U402 and an output interface, wherein the power interface is used for connecting a 12V direct-current power supply, the booster chip U402 is used for boosting, and the output interface is used for connecting the microcontroller;
the boosting chip U402 adopts a boosting type switching voltage stabilizing controller with the model number of FP 5138B.
Preferably, the interface expansion unit includes an interface expansion circuit; the interface expansion circuit is composed of a plurality of loaded interface sub-circuits, each loaded interface sub-circuit comprises a relay and an MBUS connector, the relays are electrically connected with the microcontroller and the MBUS connectors respectively, and each relay expands the MBUS connector connected with the relay into a plurality of MBUS interfaces through the control of the microcontroller; each path of the MBUS interface is used for connecting the MBUS slave station.
Preferably, the data transceiver unit includes a data transmitting circuit and a data receiving circuit, the data transmitting circuit and the data receiving circuit are respectively electrically connected to the microcontroller and the interface expansion circuit, the data transmitting circuit completes the operation of transmitting the instruction message issued by the microcontroller to the MBUS slave station through the interface expansion circuit, and the microcontroller completes the collection of the data uploaded to the interface expansion circuit by the MBUS slave station through the data receiving circuit.
Preferably, the data sending circuit includes a control interface and a voltage-reducing chip U401, the control interface is electrically connected with the microcontroller and the voltage-reducing chip U401 respectively, the output end of the voltage-reducing chip U401 is electrically connected with the interface expansion circuit, and the voltage-reducing chip U401 is configured to periodically convert voltage according to an instruction message issued by the microcontroller;
the voltage reduction chip U401 adopts an adjustable three-terminal positive voltage regulator with the model number of LM 317.
Preferably, the data receiving circuit comprises a voltage comparator U403 with the model number LM 393; the voltage comparator U403 includes a first pin, a second pin, and a third pin, where the first pin is electrically connected to the microcontroller, and the second pin and the third pin are electrically connected to the interface expansion circuit.
Preferably, the overload protection unit includes an overload protection circuit; the overload protection circuit comprises a fuse RP401 and an optocoupler GD401, the fuse RP401 is electrically connected with the interface expansion circuit, and the optocoupler GD401 is electrically connected with the microcontroller and the fuse RP401 respectively.
Preferably, the alarm indication unit comprises an LED alarm indication circuit; the LED alarm indicating circuit is electrically connected with the microcontroller, and the LED alarm indicating circuit completes alarm operation under the control of the microcontroller.
By adopting the scheme, the utility model discloses following beneficial effect has:
1. the utility model has the advantages of effectively improving the loading capacity and the coverage area of the meter reading system, reducing the wiring cost, having exquisite structure, being easy to be marketized and being worth of social vigorous popularization;
2. the application of the MBUS interface in the optimized scheme can effectively avoid meter reading failure caused by wiring errors, the wiring sequence does not need to be distinguished in construction, the construction difficulty is low, the maintenance is easy, and the use experience is good;
3. in the preferable scheme, the microcontroller and the LED alarm indicating circuit are applied, the meter reading mechanism and the maximum water use base number of the user are set through the microcontroller, data transparent transmission is realized, the alarm mechanism of the LED alarm indicating circuit can be triggered when the water use of the user exceeds the maximum water use base number, the water use condition of the water meter is managed in real time and on line, and the management is more efficient and convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a system configuration diagram of the present invention;
fig. 2 is a circuit diagram of the MBUS booster circuit of the present invention;
fig. 3 is a circuit diagram of the interface expansion circuit of the present invention;
fig. 4 is a circuit diagram of the data transmission circuit of the present invention;
fig. 5 is a circuit diagram of the data receiving circuit of the present invention;
fig. 6 is a circuit diagram of the overload protection circuit of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 6, the utility model provides a MBUS master station device for in long-range meter reading system is concentrated to community, include:
a control unit 1 for controlling the operation of the apparatus;
the power management unit 2 is electrically connected with the control unit 1 and used for providing working power;
the interface expansion unit 3 is electrically connected with the control unit 1 and is used for connecting a plurality of MBUS slave stations; each MBUS slave station comprises a plurality of MBUS water meters;
the data receiving and sending unit 4 is respectively electrically connected with the control unit 1 and the interface expansion unit 3, and is used for transmitting the instruction message issued by the control unit 1 and receiving the data uploaded by the MBUS water meter;
the overload protection unit 5 is respectively and electrically connected with the control unit 1 and the interface extension unit 3 and is used for realizing circuit overload protection;
and the alarm indicating unit 6 is electrically connected with the control unit 1 and is used for indicating the running state of the system, including indicating circuit overload and indicating that the water consumption of a user exceeds a preset maximum water consumption base number.
The control unit 1 comprises a microcontroller for controlling the operation of the interface expansion unit 3, the data transceiver unit 4 and the alarm indication unit 6; further, the microcontroller adopts a single chip microcomputer with the model of STM32F401VBT 6.
The power management unit 2 includes an MBUS booster circuit 21; the MBUS booster circuit 21 comprises a power interface, a booster chip U402 and an output interface, wherein the power interface is used for connecting a 12V direct current power supply, the booster chip U402 is used for converting 12V direct current into 34V direct current, and the output interface is used for connecting the microcontroller so as to provide the 34V direct current for the microcontroller; further, the boost chip U402 adopts a boost type switching regulator controller with the model number FP 5138B.
The interface expansion unit 3 includes an interface expansion circuit 31; the interface expansion circuit 31 is composed of two on-load interface sub-circuits 311, each on-load interface sub-circuit 311 comprises a relay and an MBUS connector, the relays are respectively electrically connected with the microcontroller and the MBUS connectors, each relay realizes that the MBUS connector connected with the relay is expanded into two MBUS interfaces through the control of the microcontroller, so that the interface expansion unit 3 is provided with four MBUS interfaces, each MBUS interface is used for connecting 50 MBUS water meters, engineering wiring is facilitated, and the on-load capacity of a meter reading system can be effectively improved; specifically, a single device can be connected with 200 MBUS water meters, the wiring length of the single device can reach 500 meters, the coverage range is wide, and the layout cost is greatly reduced.
The data transceiver unit 4 comprises a data transmitting circuit 41 and a data receiving circuit 42, the data transmitting circuit 41 and the data receiving circuit 42 are respectively electrically connected with the microcontroller and the interface expansion circuit 31, the data transmitting circuit 41 completes the operation of transmitting the instruction message issued by the microcontroller to the MBUS water meter through the interface expansion circuit 31, and the microcontroller completes the collection of the data uploaded to the interface expansion circuit 31 by the MBUS water meter through the data receiving circuit 42;
the data sending circuit 41 comprises a control interface and a voltage reduction chip U401, the control interface is respectively electrically connected with the microcontroller and the voltage reduction chip U401, the output end of the voltage reduction chip U401 is electrically connected with the interface expansion circuit 31, the voltage reduction chip U401 is used for periodically converting the 34V direct current provided by the microcontroller into 22V direct current according to the instruction message issued by the microcontroller, and then the voltage reduction chip U401 alternately outputs the 34V direct current voltage and the 22V direct current voltage to transmit the meter number and the meter reading instruction issued by the microcontroller to the corresponding MBUS water meter through the interface expansion circuit 31; further, the voltage reduction chip U401 adopts an adjustable three-terminal positive voltage regulator with the model number LM 317;
the data receiving circuit 42 comprises a voltage comparator U403 with the model number LM 393; the voltage comparator U403 includes a first pin, a second pin and a third pin, the first pin is electrically connected to the microcontroller, and the second pin and the third pin are electrically connected to the interface expansion circuit 31; further, if the voltage of the third pin is greater than the voltage of the second pin, the first pin outputs a low level, and if the voltage of the third pin is less than the voltage of the second pin, the first pin outputs a high level, so that the microcontroller realizes the operation of receiving the MBUS uploaded data by reading the level output by the first pin in real time.
The overload protection unit 5 includes an overload protection circuit 51; overload protection circuit 51 includes fuse RP401 and opto-coupler GD401, fuse RP401 with interface expander circuit 31 electricity is connected, opto-coupler GD401 respectively with microcontroller and fuse RP401 electricity are connected, and when the MBUS water gauge short circuit appears, fuse RP401 fuses, leads to opto-coupler GD401 work, and then microcontroller detects opto-coupler GD401 voltage change, and 6 warning suggestion managers that the microcontroller control is connected with it to cut off data transmission circuit 41's work, until the circuit resumes.
The alarm indicating unit 6 comprises an LED alarm indicating circuit; the LED alarm indicating circuit is electrically connected with the microcontroller, and the LED alarm indicating circuit completes alarm operation under the control of the microcontroller.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model has the advantages of effectively improving the loading capacity and the coverage area of the meter reading system, reducing the wiring cost, having exquisite structure, being easy to be marketized and being worth of social vigorous popularization;
2. the application of the MBUS interface in the optimized scheme can effectively avoid meter reading failure caused by wiring errors, the wiring sequence does not need to be distinguished in construction, the construction difficulty is low, the maintenance is easy, and the use experience is good;
3. in the preferable scheme, the microcontroller and the LED alarm indicating circuit are applied, the meter reading mechanism and the maximum water use base number of the user are set through the microcontroller, data transparent transmission is realized, the alarm mechanism of the LED alarm indicating circuit can be triggered when the water use of the user exceeds the maximum water use base number, the water use condition of the water meter is managed in real time and on line, and the management is more efficient and convenient.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An MBUS master station device used in a community centralized remote meter reading system is characterized by comprising:
a control unit for controlling the operation of the apparatus;
the power supply management unit is electrically connected with the control unit and used for providing working power supply;
the interface expansion unit is electrically connected with the control unit and is used for connecting a plurality of MBUS slave stations;
the data receiving and transmitting unit is respectively electrically connected with the control unit and the interface expansion unit, and is used for transmitting the instruction message sent by the control unit and receiving the data uploaded by the MBUS slave station;
the overload protection unit is respectively electrically connected with the control unit and the interface extension unit and is used for realizing circuit overload protection;
and the alarm indicating unit is electrically connected with the control unit and is used for indicating the running state of the system.
2. The MBUS master station device used in the community centralized remote meter reading system according to claim 1, wherein the control unit comprises a microcontroller for controlling the operation of the interface expansion unit, the data transceiver unit and the alarm indication unit;
the microcontroller adopts the singlechip that the model is STM32F401VBT 6.
3. The MBUS master station device for the community centralized remote meter reading system according to claim 2, wherein the power management unit comprises an MBUS booster circuit; the MBUS booster circuit comprises a power interface, a booster chip U402 and an output interface, wherein the power interface is used for connecting a 12V direct-current power supply, the booster chip U402 is used for boosting, and the output interface is used for connecting the microcontroller;
the boosting chip U402 adopts a boosting type switching voltage stabilizing controller with the model number of FP 5138B.
4. The MBUS master station device used in the community centralized remote meter reading system according to claim 2, wherein the interface expansion unit comprises an interface expansion circuit; the interface expansion circuit is composed of a plurality of loaded interface sub-circuits, each loaded interface sub-circuit comprises a relay and an MBUS connector, the relays are electrically connected with the microcontroller and the MBUS connectors respectively, and each relay expands the MBUS connector connected with the relay into a plurality of MBUS interfaces through the control of the microcontroller; each path of the MBUS interface is used for connecting the MBUS slave station.
5. The MBUS master station device for the community centralized remote meter reading system according to claim 4, wherein the data transceiver unit comprises a data transmitting circuit and a data receiving circuit, the data transmitting circuit and the data receiving circuit are respectively electrically connected with the microcontroller and the interface expansion circuit, the data transmitting circuit completes the operation of transmitting the instruction message issued by the microcontroller to the MBUS slave station through the interface expansion circuit, and the microcontroller completes the collection of the data transmitted to the interface expansion circuit from the MBUS slave station through the data receiving circuit.
6. The MBUS master station device for the centralized remote community meter reading system according to claim 5, wherein the data transmission circuit comprises a control interface and a voltage reduction chip U401, the control interface is electrically connected with the microcontroller and the voltage reduction chip U401 respectively, the output end of the voltage reduction chip U401 is electrically connected with the interface expansion circuit, and the voltage reduction chip U401 is used for periodically converting voltage according to a command message sent by the microcontroller;
the voltage reduction chip U401 adopts an adjustable three-terminal positive voltage regulator with the model number of LM 317.
7. The MBUS master station device for the community centralized remote meter reading system according to claim 5, wherein the data receiving circuit comprises a voltage comparator U403 with a model number LM 393; the voltage comparator U403 includes a first pin, a second pin, and a third pin, where the first pin is electrically connected to the microcontroller, and the second pin and the third pin are electrically connected to the interface expansion circuit.
8. The MBUS master station device used in the community centralized remote meter reading system according to claim 4, wherein the overload protection unit comprises an overload protection circuit; the overload protection circuit comprises a fuse RP401 and an optocoupler GD401, the fuse RP401 is electrically connected with the interface expansion circuit, and the optocoupler GD401 is electrically connected with the microcontroller and the fuse RP401 respectively.
9. The MBUS master station device used in the community centralized remote meter reading system according to claim 2, wherein the alarm indication unit comprises an LED alarm indication circuit; the LED alarm indicating circuit is electrically connected with the microcontroller, and the LED alarm indicating circuit completes alarm operation under the control of the microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020564887.8U CN211555108U (en) | 2020-04-15 | 2020-04-15 | MBUS master station device used in community centralized remote meter reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020564887.8U CN211555108U (en) | 2020-04-15 | 2020-04-15 | MBUS master station device used in community centralized remote meter reading system |
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| Publication Number | Publication Date |
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| CN211555108U true CN211555108U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020564887.8U Active CN211555108U (en) | 2020-04-15 | 2020-04-15 | MBUS master station device used in community centralized remote meter reading system |
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