CN210515631U - High-adaptability remote meter reading concentrator - Google Patents
High-adaptability remote meter reading concentrator Download PDFInfo
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- CN210515631U CN210515631U CN201921145229.9U CN201921145229U CN210515631U CN 210515631 U CN210515631 U CN 210515631U CN 201921145229 U CN201921145229 U CN 201921145229U CN 210515631 U CN210515631 U CN 210515631U
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Abstract
The utility model belongs to the technical field of the long-range technique of checking meter of electric power and specifically relates to a long-range concentrator of checking meter of high suitability, including microprocessor, power supply circuit, a storage circuit, the wireless communication unit, the wired communication unit, 485 communication unit and power carrier communication unit, microprocessor embeds there is clock circuit, power supply circuit includes external direct current input voltage's switch steady voltage unit and output operating voltage's linear steady voltage unit, a storage circuit, the wireless communication unit, the wired communication unit, 485 communication unit and power carrier communication unit respectively with microprocessor signal connection, power supply circuit respectively with microprocessor, a storage circuit, the wireless communication unit, the wired communication unit, 485 communication unit and power carrier communication unit connect thereby provide operating voltage. The utility model discloses built-in multiple communication mode, multiple communication demand in the compatible different installation occasions has optimized power structure and storage card drive structure, has improved conversion efficiency, avoids falling the condition that the electricity lost the data.
Description
Technical Field
The utility model belongs to the technical field of the long-range technique of checking meter of electric power and specifically relates to a concentrator is checked meter to long-range of high suitability.
Background
With the development of power supply technology and the increasing density of population, a low-voltage centralized meter reading technology for collecting electric energy data of each household through remote centralized meter reading equipment appears. Specifically, in a residential area with low-voltage power supply, a concentrator can be arranged to collect and copy the electric energy meter of each household, and a communication module is arranged in the concentrator and can transmit electric energy data to a remote system terminal so as to realize remote collection and copy of the electric energy data. However, the electric energy meters of residential users in various regions may be produced by different manufacturers, the communication modes and the communication protocols built in the electric energy meters produced by the different manufacturers are different, the concentrator cannot be adapted to most electric energy meters or other types of concentrators, and the concentrator on the existing market has a single remote communication means and is easy to have a slow communication speed in a busy time period.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the current long-range concentrator communication mode of checking meter is single, the defect of the most model electric energy meter of unable adaptation.
In order to achieve the above object, the utility model provides a high-adaptability remote meter reading concentrator, which comprises a microprocessor, a power circuit, a storage circuit, a wireless communication unit, a wired communication unit, a 485 communication unit and a power carrier communication unit; the microprocessor is internally provided with a clock circuit, the power supply circuit comprises a switch voltage stabilizing unit and a linear voltage stabilizing unit, the switch voltage stabilizing unit is externally connected with direct current input voltage, the input end of the linear voltage stabilizing unit is connected with the output end of the switch voltage stabilizing unit, and the storage circuit is provided with a storage card.
The storage circuit, the wireless communication unit, the wired communication unit, the 485 communication unit and the power carrier communication unit are respectively in signal connection with the microprocessor, the clock circuit is connected with the storage card so as to maintain the clock signals of the storage card to be uniform, and the power circuit is respectively connected with the microprocessor, the storage circuit, the wireless communication unit, the wired communication unit, the 485 communication unit and the power carrier communication unit so as to provide working voltage.
Preferably, the switching voltage stabilizing unit comprises a switching voltage stabilizing chip U4, a diode D2 and an inductor L1, the input end of the switching voltage stabilizing chip U4 takes power from external direct-current input voltage, a single-end grounded capacitor C13 is connected beside the input end of the switching voltage stabilizing chip U1, an inductor L1 is connected in series with the output end of the switching voltage stabilizing chip U4, a single-end grounded capacitor C2 is connected beside one end of the inductor L1 far away from the switching voltage stabilizing chip U4, a diode D2 is connected in a bypass mode in the reverse direction to one end of the inductor L1 close to the switching voltage stabilizing chip U4, and the anode of the diode D2 is grounded; the linear voltage stabilizing unit comprises a linear voltage stabilizing chip U3, and a magnetic bead FB1 and a magnetic bead FB2 which are respectively arranged at the input end and the output end of the linear voltage stabilizing chip U3, wherein one end of the magnetic bead FB1, which is far away from the linear voltage stabilizing chip U3, is electrically connected with the output end of the switch voltage stabilizing unit, and one end of the magnetic bead FB1, which is close to the linear voltage stabilizing chip U3, is connected with a reference voltage VA.
Preferably, the microprocessor and the memory card are correspondingly electrically connected to form a plurality of data paths, and the memory circuit comprises a switching tube Q2, a diode D3, a diode D4, a current-limiting resistor R1 and a charging and discharging capacitor C1; the microprocessor controls the on-off of a power pin of the memory card through a switching tube Q2, a current-limiting resistor R1 is connected with a diode D4 in parallel, and one end of the current-limiting resistor R1, which is far away from the switching tube Q2, is electrically connected with a single-end grounded charge-discharge capacitor C1; the cathode of the diode D4 is connected to one side of the unidirectional current path, and the anode of the diode D4 is connected to the common node of the charging and discharging capacitor C1 and the current limiting resistor R1.
Preferably, the wireless communication unit includes a wireless communication module and a network filter, and the network filter is disposed between the wireless communication module and the microprocessor.
Furthermore, the wireless communication module is a GPRS module, an NB-Iot module or a WIFI module.
Preferably, the power carrier communication unit includes an isolation transceiver and a power carrier communication module, and the isolation transceiver is disposed between the power carrier communication module and the microprocessor.
Preferably, the system also comprises a plurality of groups of asynchronous receiving and transmitting transmitters, wherein the asynchronous receiving and transmitting transmitters are respectively in signal connection with a data receiving end and a data transmitting end of the microprocessor, and the asynchronous receiving and transmitting transmitters are connected with an RS232 interface used for realizing signal interaction with a PC end.
Preferably, the microprocessor is an LPC2378 type chip.
The utility model has the advantages that: a plurality of communication modes are built in the electric energy meter, so that the electric energy meter can meet various communication requirements in different installation occasions, and the problems that the communication configuration is modified on site or the electric energy meter is replaced by a user due to the communication mode are solved; in addition, a power supply structure and a memory card driving structure are optimized, conversion efficiency is improved, the situation that data are lost due to power failure is avoided, and reliability is high.
Drawings
FIG. 1: the utility model discloses the logic principle schematic diagram of the long-range concentrator of checking meter of high suitability.
FIG. 2: the utility model discloses wireless communication unit's principle sketch map.
FIG. 3: the utility model discloses power line carrier communication unit's principle sketch.
FIG. 4: the utility model discloses the principle sketch of storage card circuit.
FIG. 5: the utility model discloses power supply circuit's principle sketch map.
FIG. 6: the utility model discloses asynchronous transceiver's wiring principle sketch map.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings.
The utility model provides a long-range concentrator of checking meter of high suitability.
Referring to fig. 1-6, in an embodiment of the present invention, the remote meter reading concentrator includes a microprocessor, a power circuit, a storage circuit, a wireless communication unit, a wired communication unit, a 485 communication unit, and a power carrier communication unit. Wherein, the microprocessor is an LPC2378 chip, and a clock circuit is arranged in the microprocessor; the power supply circuit comprises a switch voltage stabilizing unit and a linear voltage stabilizing unit, wherein the switch voltage stabilizing unit is externally connected with direct current input voltage, the input end of the linear voltage stabilizing unit is connected with the output end of the switch voltage stabilizing unit, the storage circuit is provided with a storage card, and the clock circuit is in signal connection with the storage card so as to maintain the clock signals of the clock circuit and the storage card to be uniform. The storage circuit, the wireless communication unit, the wired communication unit, the 485 communication unit and the power carrier communication unit are respectively in signal connection with the microprocessor, and the power supply circuit is respectively connected with the microprocessor, the storage circuit, the wireless communication unit, the wired communication unit, the 485 communication unit and the power carrier communication unit to provide working voltage.
For uplink communication, the wireless communication unit includes a wireless communication module (not shown) and a network filter, wherein the network filter is an HR601680 type filter, and the network filter is connected between the wireless communication module and the microprocessor and is used for eliminating an interference signal in communication; the wireless communication module is a GPRS module, an NB-Iot module or a WIFI module, any wireless communication mode can be selected according to field installation conditions, and the wireless communication module can also be directly connected to a wide area network through a network cable.
For downlink communication, the downlink communication is communication between the concentrator and the electric energy meter or communication between the bus concentrator and each branch concentrator, and the remote meter reading concentrator of the embodiment has communication modes of power carrier, 485 communication and ZigBee; as shown in fig. 3, the power carrier communication unit includes an isolation transceiver and a power carrier communication module (not labeled in the figure), the isolation transceiver is a CTM8251T type isolation chip, CANH, CANL and CANG pins of the isolation transceiver are respectively connected to the power carrier communication module, and data transceiving pins (CANRXD and cannxd) of the isolation transceiver are respectively connected to the microprocessor.
In an optional technical scheme, the remote meter reading concentrator further comprises a plurality of groups of asynchronous receiving and transmitting transmitters, the asynchronous receiving and transmitting transmitters are respectively in signal connection with a data receiving end and a data transmitting end of the microprocessor, the asynchronous receiving and transmitting transmitters are connected with RS232 interfaces and used for achieving signal interaction with a PC end, the remote meter reading concentrator can conveniently communicate with the PC end, and real-time maintenance and data calling are facilitated.
The power supply circuit is composed of a switch voltage stabilizing unit and a linear voltage stabilizing unit, and has higher conversion efficiency, so that the condition that the whole temperature of the circuit board is overhigh is avoided. Specifically, the switching voltage stabilizing unit comprises a switching voltage stabilizing chip U4, a diode D2 and an inductor L1, wherein the input end of the switching voltage stabilizing chip U4 gets power from external direct-current input voltage, a single-end grounded capacitor C13 is connected beside the input end of the switching voltage stabilizing chip U1, an inductor L1 is connected in series with the output end of the switching voltage stabilizing chip U4, a single-end grounded capacitor C2 is connected beside one end of the inductor L1, which is far away from the switching voltage stabilizing chip U4, a diode D2 is connected beside one end of the inductor L1, which is close to the switching voltage stabilizing chip U4 in the reverse direction, and the anode of the diode D2 is; the linear voltage stabilizing unit comprises a linear voltage stabilizing chip U3, and a magnetic bead FB1 and a magnetic bead FB2 which are respectively arranged at the input end and the output end of the linear voltage stabilizing chip U3, wherein one end of the magnetic bead FB1, which is far away from the linear voltage stabilizing chip U3, is electrically connected with the output end of the switch voltage stabilizing unit, and one end of the magnetic bead FB1, which is close to the linear voltage stabilizing chip U3, is connected with a reference voltage VA. The switch voltage-stabilizing chip U4 is an LM2576S type voltage-stabilizing chip, and the linear voltage-stabilizing chip U3 is an SPX1117M3 type voltage-stabilizing chip.
The storage circuit is composed of a storage card and a peripheral driving circuit thereof, the microprocessor and the storage card are correspondingly electrically connected to form a plurality of data paths, and the storage circuit comprises a switching tube Q2, a diode D3, a diode D4, a current-limiting resistor R1 and a charging and discharging capacitor C1; the microprocessor controls the on-off of a power pin of the memory card through a switching tube Q2, a current-limiting resistor R1 is connected with a diode D4 in parallel, and one end of the current-limiting resistor R1, which is far away from the switching tube Q2, is electrically connected with a single-end grounded charge-discharge capacitor C1; the cathode of the diode D4 is connected to one side of the unidirectional current path, and the anode of the diode D4 is connected to the common node of the charging and discharging capacitor C1 and the current limiting resistor R1. The charging and discharging capacitor C1 can supply power to the power supply pin of the memory card in a short time when the microprocessor or the power supply circuit is powered off, and the memory card enters a low-power consumption dormant state because the microprocessor does not send out control signals any more in the short time, so that the memory card is prevented from being damaged or losing stored data due to sudden power failure.
To sum up, the utility model provides a high adaptability's remote meter reading concentrator embeds has multiple communication mode, can be compatible the multiple communication demand in the different installation occasions, avoids because communication mode and on-spot modification communication configuration or user change problems such as electric energy meter; in addition, the power supply structure and the memory card driving structure are optimized, the conversion efficiency is improved, the situation that data are lost due to power failure is avoided, the reliability is high, and the method has a progressive significance.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A high-adaptability remote meter reading concentrator is characterized by comprising:
the microprocessor is internally provided with a clock circuit;
the power supply circuit comprises a switch voltage stabilizing unit and a linear voltage stabilizing unit, wherein the switch voltage stabilizing unit is externally connected with direct current input voltage, and the input end of the linear voltage stabilizing unit is connected with the output end of the switch voltage stabilizing unit;
the storage circuit is provided with a storage card;
a wireless communication unit and a wired communication unit for uplink communication;
a 485 communication unit and a power carrier communication unit for downlink communication;
the storage circuit, the wireless communication unit, the wired communication unit, the 485 communication unit and the power carrier communication unit are respectively in signal connection with the microprocessor, the clock circuit is connected with the storage card to maintain the clock signals of the storage card to be uniform, and the power circuit is respectively connected with the microprocessor, the storage circuit, the wireless communication unit, the wired communication unit, the 485 communication unit and the power carrier communication unit to provide working voltage.
2. The high-adaptability remote meter reading concentrator is characterized in that the switching voltage stabilizing unit comprises a switching voltage stabilizing chip U4, a diode D2 and an inductor L1, the input end of the switching voltage stabilizing chip U4 gets power from an external direct current input voltage, a single-end grounded capacitor C13 is connected beside the input end of the switching voltage stabilizing chip U1, an inductor L1 is connected in series with the output end of the switching voltage stabilizing chip U4, a single-end grounded capacitor C2 is connected beside the end, far away from the switching voltage stabilizing chip U4, of the inductor L1, a diode D2 is connected in a reverse direction and beside the end, close to the switching voltage stabilizing chip U4, of the inductor L1, and the anode of the diode D2 is grounded;
the linear voltage stabilization unit comprises a linear voltage stabilization chip U3, and a magnetic bead FB1 and a magnetic bead FB2 which are respectively arranged at the input end and the output end of the linear voltage stabilization chip U3, wherein one end of the magnetic bead FB1, which is far away from the linear voltage stabilization chip U3, is electrically connected with the output end of the switch voltage stabilization unit, and one end of the magnetic bead FB1, which is close to the linear voltage stabilization chip U3, is connected with a reference voltage VA.
3. The high-adaptability remote meter reading concentrator according to claim 1, wherein the microprocessor and the memory card are correspondingly electrically connected to form a plurality of data paths, and the memory circuit comprises a switching tube Q2, a diode D3, a diode D4, a current limiting resistor R1 and a charging and discharging capacitor C1; the microprocessor controls the on-off of a power pin of the memory card through a switching tube Q2, the current-limiting resistor R1 is connected with a diode D4 in parallel, and one end of the current-limiting resistor R1, which is far away from the switching tube Q2, is electrically connected with a single-end grounded charge-discharge capacitor C1; the source of the switching tube Q2 is connected in series with the anode of the diode D3 to form a unidirectional current path, the cathode of the diode D4 is connected to one side of the unidirectional current path, and the anode of the diode D4 is connected to a common node of the charging and discharging capacitor C1 and the current limiting resistor R1.
4. The high-adaptability remote meter reading concentrator according to claim 1, wherein the wireless communication unit comprises a wireless communication module and a network filter, and the network filter is arranged between the wireless communication module and the microprocessor.
5. The high-adaptability remote meter reading concentrator according to claim 4, wherein the wireless communication module is one or more of a GPRS module, an NB-Iot module or a WIFI module.
6. The high-adaptability remote meter reading concentrator according to claim 1, wherein the power carrier communication unit comprises an isolation transceiver and a power carrier communication module, and the isolation transceiver is arranged between the power carrier communication module and the microprocessor.
7. The high-adaptability remote meter reading concentrator according to claim 1, further comprising a plurality of sets of asynchronous transceiver transmitters, wherein the asynchronous transceiver transmitters are respectively in signal connection with a data receiving end and a data sending end of the microprocessor, and the asynchronous transceiver transmitters are connected with RS232 interfaces for realizing signal interaction with the PC end.
8. The high-adaptability remote meter reading concentrator according to claim 1, wherein the microprocessor is an LPC2378 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145229.9U CN210515631U (en) | 2019-07-18 | 2019-07-18 | High-adaptability remote meter reading concentrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145229.9U CN210515631U (en) | 2019-07-18 | 2019-07-18 | High-adaptability remote meter reading concentrator |
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| Publication Number | Publication Date |
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| CN210515631U true CN210515631U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921145229.9U Expired - Fee Related CN210515631U (en) | 2019-07-18 | 2019-07-18 | High-adaptability remote meter reading concentrator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053467A (en) * | 2020-09-14 | 2020-12-08 | 广州鹰瞰信息科技有限公司 | Vehicle-mounted video recording equipment |
-
2019
- 2019-07-18 CN CN201921145229.9U patent/CN210515631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053467A (en) * | 2020-09-14 | 2020-12-08 | 广州鹰瞰信息科技有限公司 | Vehicle-mounted video recording equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 Termination date: 20210718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |