CN205582255U - A intelligent adapter for power consumption information acquisition - Google Patents
A intelligent adapter for power consumption information acquisition Download PDFInfo
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- CN205582255U CN205582255U CN201620323061.6U CN201620323061U CN205582255U CN 205582255 U CN205582255 U CN 205582255U CN 201620323061 U CN201620323061 U CN 201620323061U CN 205582255 U CN205582255 U CN 205582255U
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- power
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- power information
- serial ports
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Abstract
The utility model relates to an intelligent adapter for power consumption information acquisition, including power module, MCU and RS the power output termination RS of the fixed voltage stabiliser that 485 pick -up chip, power module include 485 pick -up chip's power input end power output termination MCU's the power input end of the low pressure drop stabiliser of forward, MCU's parallelly connected 2 the at least RS of power consumption information input end 485 pick -up chip, each RS the 485 pick -up chip the next RS that establishes ties 485 the serial ports, each the next RS does 485 serial port connection couple a RS to ammeter, MCU's power consumption information output end forward again behind the 485 pick -up chip to an upper RS 485 the serial ports, upper RS 485 serial port connection is to the concentrator. The utility model discloses have that each branch road is all kept apart, after the zero time delay automatic send and receive conversion, the automatic excision of trouble branch road, fault recovery function such as reclosure, greatly improved system job stabilization nature and reliability.
Description
Technical field
This utility model relates to a kind of adapter, a kind of intelligent adapter gathered for power information.
Background technology
Existing power information gathers adapter and directly uses RS-485 acquisition chip to gather power information, and connected by RS-485 bus, RS-485 bus sends and differential received based on balance, there is the strongest anti-common mode disturbances ability, use widely in long-range wired digital communication field, but it there is also some shortcomings, as a node failure can cause the paralysis of whole bus, can not star-like wiring etc.；And existing electrical information gather adapter can not stable at more than 2.0V by RS-485 acquisition chip both end voltage, thus cause collection point loss of data, even result in RS-485 acquisition chip and quit work, thus form collection data failure；It addition, existing electrical information gathers adapter does not consider the access of nonpolarity table when design, so there are some defects in this problem compatible.
Utility model content
Technical problem to be solved in the utility model is, the shortcoming overcoming prior art, a kind of intelligent adapter gathered for power information is provided, the problem that can not communicate that RS-485 intelligent adapter brings on the contrary due to polarity connection in intelligent grid communication system can be solved.
This utility model solves the technical scheme of above technical problem:
A kind of intelligent adapter gathered for power information, including a power module, a MCU and at least 3 RS-485 acquisition chips, power module includes a fixed voltage manostat and a forward low dropout voltage regulator, the power input of fixed voltage manostat and forward low dropout voltage regulator all meets VCC, the power output end determining Voltagre regulator connects the power input of RS-485 acquisition chip, 5V power supply is provided for RS-485 acquisition chip, the power output end of forward low dropout voltage regulator connects the power input of MCU, provides 3.3V power supply for MCU；At least 2 RS-485 acquisition chips of power information input parallel connection that MCU has, the RS-485 acquisition chip of each parallel connection is all connected a next RS-485 serial ports, each the next RS-485 serial ports is connected to ammeter, for gathering the power information of ammeter, the power information outfan that MCU has couples a upper RS-485 serial ports after coupling a RS-485 acquisition chip again, upper RS-485 serial ports is connected to concentrator, for exporting power information to concentrator.
The technical scheme that this utility model limits further is:
Being previously described for the intelligent adapter that power information gathers, wherein positive fixed voltage manostat is 78M05 chip.
Being previously described for the intelligent adapter that power information gathers, wherein forward low dropout voltage regulator is AMS1117-3.3 chip.
Being previously described for the intelligent adapter that power information gathers, wherein MCU is TMS320F2407 chip.
Being previously described for the intelligent adapter that power information gathers, wherein concentrator is DJGL33-NRZS8028, DJGL33-KE6630, DCZL33-TLY2310, WFET-600, DJGZ28-XJ801, DJGL33-DF6203 etc..
Being previously described for the intelligent adapter that power information gathers, the most upper RS485 serial ports and the next RS-485 serial ports is all independent driving port, and is provided with reverse protection device.
The beneficial effects of the utility model are: MCU voltage is maintained at 3.3V by this utility model, RS-485 acquisition chip voltage is maintained at 5V, thus will not reduce the stability of RS-485 acquisition chip, be not result in loss of data, improve compatibility；This utility model changes original bus type mode of connection into star-like on-link mode (OLM); solely driven to each road by RS-485 serial ports; mutually isolated; the RS485 equipment of difference in functionality or zones of different can be divided in the most independent multiple RS-485 segments by the application of the RS-485 interface of high reliability; RS-485 input/output port all uses independent type of drive; drop-down port is with reversal connection protection function; ensure certain port once outlet problem; RS-485 hub can automatically cut off port, it is ensured that other ports properly functioning；Divide loop compatibility polarized electric energy meter and nonpolarity electric energy meter, and main RS-485 has the function that auto polarity judges and automatically switches, and solves the problem that can not communicate that RS-485 intelligent adapter brings on the contrary due to polarity connection in intelligent grid communication system；Intelligent adapter of the present utility model has the functions such as each branch road is all isolated, the conversion of zero propagation automatic transceiving, fault branch excise automatically, automatically access after fault recovery, RS-485 bus deficiency in actual applications can be made up, drastically increase stability and the reliability of system work.
Accompanying drawing explanation
Fig. 1 is connection block diagram of the present utility model.
Fig. 2 is schematic block circuit diagram of the present utility model.
Detailed description of the invention
Embodiment
1
The open intelligent adapter gathered for power information of the present embodiment, as depicted in figs. 1 and 2, including a power module, one MCU and at least 3 RS-485 acquisition chips, wherein power module includes a positive fixed voltage manostat and a forward low dropout voltage regulator, the power input of positive fixed voltage manostat and forward low dropout voltage regulator all meets VCC, the power output end of positive fixed voltage manostat connects the power input of RS-485 acquisition chip, 5V power supply is provided for RS-485 acquisition chip, the power output end of forward low dropout voltage regulator connects the power input of MCU, 3.3V power supply is provided for MCU；At least 2 RS-485 acquisition chips of power information input parallel connection that MCU has, the RS-485 acquisition chip of each parallel connection is all connected a next RS-485 serial ports, each the next RS-485 serial ports is connected to ammeter, for gathering the power information of ammeter, the power information outfan that MCU has is forwarded to a upper RS485 serial ports after coupling a RS-485 acquisition chip again, upper RS-485 serial ports is attached to concentrator, for exporting power information to concentrator.Wherein in three ends, electric current positive fixed voltage manostat uses 78M05 chip；Forward low dropout voltage regulator uses AMS1117-3.3 chip；MCU uses TMS320F2407 chip；Concentrator is DJGL33-NRZS8028, DJGL33-KE6630, DCZL33-TLY2310, WFET-600, DJGZ28-XJ801, DJGL33-DF6203 etc..
The present embodiment upwards provides a RS-485 serial ports, provides downwards 14 road RS-485 serial ports.Lower bit port finds non-working port with reversal connection short-circuit protection function, intelligence, automatically cuts off non-working port protection whole system stable operation.Prolongation RS-485 bus communication distance can be relayed, improve the load capacity of RS-485 bus so that RS-485 network can load more equipment.
The power information of the present embodiment gathers intelligent adapter and has the advantage that
Rapidity: zero propagation forwards, during proper communication, CPU does not intervenes communication process, and zero propagation forwards；
The excision of fault ms level and recovery: arbitrarily during branch trouble, CPU excises this fault branch within the ms level time, and after failure vanishes, CPU recovers the communication of this branch road within the ms level time；
Impedance auto-match function and RS-485 self-inspection: intelligent adapter possesses impedance auto-match function and RS-485 self-checking function, RS-485 loop can be checked, the port that prompting is broken down, it is easy to search trouble point, because intelligent adapter uses separated time wiring, cause follow-up table meter to be checked meter the fault of failure so the RS-485 loop not havinging a table meter disconnects, reduce the scope of fault impact；
Point loop compatibility polarized electric energy meter and nonpolarity electric energy meter: transform RS-485 module on the basis of intelligent electric energy meter, use nonpolarity module (no longer have AB polarity it), and this kind of table meter is referred to as the nonpolarity intelligent electric energy meter of RS-485；
Major loop non-polar design: main RS-485 has the function that auto polarity judges and automatically switches, and solves the problem that can not communicate that RS-485 intelligent adapter brings in intelligent grid communication system on the contrary due to polarity connection.
In addition to the implementation, this utility model can also have other embodiments.The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within the protection domain of this utility model requirement.
Claims (6)
1. the intelligent adapter gathered for power information, including a power module, one MCU and at least 3 RS-485 acquisition chips, it is characterized in that: described power module includes a fixed voltage manostat and a forward low dropout voltage regulator, the power input of described fixed voltage manostat and forward low dropout voltage regulator all meets VCC, the power output end of described fixed voltage manostat connects the power input of described RS-485 acquisition chip, 5V power supply is provided for described RS-485 acquisition chip, the power output end of described forward low dropout voltage regulator connects the power input of described MCU, 3.3V power supply is provided for described MCU；At least 2 RS-485 acquisition chips of power information input parallel connection that described MCU has, the RS-485 acquisition chip of each parallel connection is all connected a next RS-485 serial ports, each the next RS-485 serial ports is connected to ammeter, for gathering the power information of ammeter, the power information outfan that described MCU has couples a upper RS-485 serial ports after coupling a RS-485 acquisition chip again, described upper RS-485 serial ports is connected to a concentrator, for by power information output extremely described concentrator.
2. the intelligent adapter gathered for power information as claimed in claim 1, it is characterised in that: described fixed voltage manostat is 78M05 chip.
3. the intelligent adapter gathered for power information as claimed in claim 1, it is characterised in that: described forward low dropout voltage regulator is AMS1117-3.3 chip.
4. the intelligent adapter gathered for power information as claimed in claim 1, it is characterised in that: described MCU is TMS320F2407 chip.
5. the intelligent adapter gathered for power information as claimed in claim 1, it is characterised in that: described concentrator is DJGL33-NRZS8028, DJGL33-KE6630, DCZL33-TLY2310, WFET-600, DJGZ28-XJ801 or DJGL33-DF6203.
6. the intelligent adapter being used for power information collection as claimed in claim 1, it is characterised in that: described upper RS-485 serial ports and the next RS-485 serial ports are all independent driving port, and are provided with reverse protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323061.6U CN205582255U (en) | 2016-04-18 | 2016-04-18 | A intelligent adapter for power consumption information acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323061.6U CN205582255U (en) | 2016-04-18 | 2016-04-18 | A intelligent adapter for power consumption information acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205582255U true CN205582255U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620323061.6U Expired - Fee Related CN205582255U (en) | 2016-04-18 | 2016-04-18 | A intelligent adapter for power consumption information acquisition |
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| Country | Link |
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| CN (1) | CN205582255U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111127867A (en) * | 2019-10-21 | 2020-05-08 | 国网浙江临海市供电有限公司 | RS485 communication adapter for electricity consumption information acquisition system and control method |
| CN111862572A (en) * | 2020-08-20 | 2020-10-30 | 杭州华罡智能科技有限公司 | RS485 terminal meter reading system and meter reading mode |
| WO2023065452A1 (en) * | 2021-10-18 | 2023-04-27 | 河南许继仪表有限公司 | Direct-current metering voltage sampling device for electric energy meter |
-
2016
- 2016-04-18 CN CN201620323061.6U patent/CN205582255U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111127867A (en) * | 2019-10-21 | 2020-05-08 | 国网浙江临海市供电有限公司 | RS485 communication adapter for electricity consumption information acquisition system and control method |
| CN111862572A (en) * | 2020-08-20 | 2020-10-30 | 杭州华罡智能科技有限公司 | RS485 terminal meter reading system and meter reading mode |
| WO2023065452A1 (en) * | 2021-10-18 | 2023-04-27 | 河南许继仪表有限公司 | Direct-current metering voltage sampling device for electric energy meter |
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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: 20160914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |