CN218886450U - Instrument data collector - Google Patents
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- CN218886450U CN218886450U CN202320006466.7U CN202320006466U CN218886450U CN 218886450 U CN218886450 U CN 218886450U CN 202320006466 U CN202320006466 U CN 202320006466U CN 218886450 U CN218886450 U CN 218886450U
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Abstract
The embodiment of the utility model discloses an instrument data acquisition unit includes processing module, first conversion module, second conversion module and adjusting module, wherein, first conversion module, second conversion module pass through adjusting module and processing module link to each other, wherein, first conversion module is used for converting the MBUS signal into the TTL signal; the second conversion module is used for converting the RS485 signal into a TTL signal; the adjusting module is used for selecting the first conversion module or the second conversion module so as to enable the first conversion module to be communicated with the processing module or enable the second conversion module to be communicated with the processing module; the processing module is used for acquiring TTL signals converted from MBUS signals or TTL signals converted from RS485 signals, so that a self-adaptive data reading function is realized, and data reading of various intelligent instrument terminals can be directly realized.
Description
Technical Field
The utility model relates to a data processing technology field especially relates to an instrument data collection station.
Background
In the related metering industries of traditional water meters, electric meters, heat meters, gas meters and the like, the mode of acquiring data of the metering instruments is mainly to manually read the data at home, but because the data volume of the terminal instrument industry is large, the installation environment is complex, the response speed of manually reading the data is slow, the meter reading period is long and the like.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the embodiment of the utility model provides an instrument data collection station is provided.
The embodiment of the utility model provides an instrument data acquisition unit, instrument data acquisition unit includes processing module, first conversion module, second conversion module and adjusting module, wherein, first conversion module, second conversion module pass through adjusting module with processing module links to each other, wherein, first conversion module is used for converting the MBUS signal into the TTL signal;
the second conversion module is used for converting the RS485 signal into a TTL signal;
the adjusting module is used for selecting the first conversion module or the second conversion module so as to enable the first conversion module to be communicated with the processing module or enable the second conversion module to be communicated with the processing module;
the processing module is used for acquiring TTL signals converted from MBUS signals or TTL signals converted from RS485 signals.
Optionally, the first conversion module comprises:
the +15V pin is connected with the first end of a twelfth pole tube, the second end of the twelfth pole tube is connected with the third pin of an eighth transistor, and the first pin of the eighth transistor is connected with the MBUS _ P pin;
the 15V pin is connected with a first end of an eleventh diode, and a second end of the eleventh diode is connected with a first pin of the eighth transistor;
a second pin of the eighth transistor is connected to a first terminal of a resistor R49, a second terminal of the resistor R49 is connected to a first pin of a ninth transistor, and a second pin of the ninth transistor is connected to the TX-MBUS pin through a resistor R51.
Optionally, the first conversion module further comprises: MBUS _ N is coupled to a third pin of the comparator via a resistor R56, a first pin of the comparator is coupled to a second pin of a tenth transistor via a resistor R54, and a first pin of the tenth transistor is coupled to RX _ MBUS pin.
Optionally, the second conversion module comprises:
the RX-RS485 pin is connected with a seventh pin of the transceiver chip;
the TX-RS485 pin is connected with a sixth pin of the transceiver chip;
a first pin of the transceiving chip is connected with an RXD pin;
and the third pin of the transceiving chip is connected with the TXD pin.
Optionally, the thirty-second pin of the processing module is connected to the RX-RS485 pin of the second converting module;
and a thirty-third pin of the processing module is connected with a TX-RS485 pin of the second conversion module.
Optionally, the adjusting module includes a dial unit, where an RX pin in the dial unit is connected to a thirty ninth pin of the processing module, and a TX pin in the dial unit is connected to a forty fourth pin of the processing module.
Optionally, the meter data collector comprises a low power consumption module, the low power consumption module comprises a transmission chip, and a fourth pin of the transmission chip is connected with a thirty-first pin of the processing module;
the fifth pin of the transmission chip is connected with the twenty-fifth pin of the processing module;
the sixth pin of the transmission chip is connected with the twenty-sixth pin of the processing module;
the seventh pin of the transmission chip is connected with the twenty-seventh pin of the processing module;
the eighth pin of the transmission chip is connected with the twenty-eighth pin of the processing module;
the tenth pin of the transmission chip is connected with the twenty-ninth pin of the processing module;
and the eleventh pin of the transmission chip is connected with the thirtieth pin of the processing module.
Optionally, the meter data collector further includes a display module, a TX module of the processing module is connected to a first end of the first LED, and a second end of the first LED is connected to ground through a resistor R31;
the RX module of the processing module is connected to a first terminal of a second LED, and a second terminal of the second LED is connected to ground through a resistor R32.
Optionally, the meter data collector further includes a power conversion module, where the power conversion module includes a first conversion unit, a second conversion unit and a third conversion unit, where the first conversion unit is configured to convert an input voltage signal into a +5V power signal; the second conversion unit and the third conversion unit are used for converting the +5V power supply signal into a +15V voltage signal and a-15V voltage signal.
Optionally, the first conversion unit comprises an MP1593DN chip, the second conversion unit comprises a TPS65131RGER chip, and the third conversion unit comprises an XC62FP3002 chip.
In the technical solution provided by the embodiment of the present invention, the instrument data collector includes a processing module, a first conversion module, a second conversion module and an adjusting module, wherein the first conversion module and the second conversion module are connected to the processing module through the adjusting module, and wherein the first conversion module is used for converting the MBUS signal into the TTL signal; the second conversion module is used for converting the RS485 signal into a TTL signal; the adjusting module is used for selecting the first conversion module or the second conversion module so as to enable the first conversion module to be communicated with the processing module or enable the second conversion module to be communicated with the processing module; the processing module is used for acquiring TTL signals converted from MBUS signals or TTL signals converted from RS485 signals, the self-adaptive data reading function is achieved, and the data reading function can be directly connected with various intelligent instrument terminals in an abutting mode.
Drawings
Fig. 1 is a schematic structural diagram of an instrument data collector provided in an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a processing module provided in an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a first conversion module provided in an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of another first conversion module provided in the embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a second conversion module provided in an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a regulation module provided in an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a low power module provided in an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a display module provided in an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a power conversion module provided in an embodiment of the present invention;
fig. 10 is a schematic circuit diagram of another power conversion module provided in an embodiment of the present invention;
fig. 11 is a schematic circuit diagram of another power conversion module provided in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1, which is a schematic structural diagram of an instrument data collector provided in an embodiment of the present invention, the instrument data collector includes a processing module 101, a first conversion module 102, a second conversion module 103 and an adjusting module 104, wherein the first conversion module and the second conversion module are connected to the processing module through the adjusting module, and the first conversion module 102 is configured to convert an MBUS signal into a TTL signal;
the second conversion module 103 is configured to convert the RS485 signal into a TTL signal;
the adjusting module 104 is configured to select a first converting module or a second converting module, so that the first converting module communicates with the processing module or the second converting module communicates with the processing module;
the processing module 101 is configured to acquire a TTL signal converted from the MBUS signal or a TTL signal converted from the RS485 signal.
Fig. 3 is a schematic circuit diagram of a first conversion module provided in an embodiment of the present invention, where the first conversion module includes:
the +15V pin is connected with the first end of a twelfth pole tube, the second end of the twelfth pole tube is connected with the third pin of an eighth transistor, and the first pin of the eighth transistor is connected with the MBUS _ P pin;
the-15V pin is connected with a first end of an eleventh diode, and a second end of the eleventh diode is connected with a first pin of an eighth transistor;
a second pin of the eighth transistor is connected to a first terminal of a resistor R49, a second terminal of the resistor R49 is connected to a first pin of the ninth transistor, and a second pin of the ninth transistor is connected to the TX-MBUS pin through a resistor R51.
Specifically, the MBUS master writes data circuits to the MBUS slave. The +15V and-15V voltages provided by the power conversion module are isolated by the diodes D10 and D11 in fig. 11, and when the collector C of the PNP transistor Q8 is turned on with the emitter E of the PNP transistor Q8, the voltage of +15V is higher than the voltage of-15V, so the voltage level of the MBUS _ P pin is equal to the voltage level of the +15V pin. And the TX-MBUS pin is a data output pin of the controller. When TX is high, NPN transistor Q9 is turned on, and when the level of pin 1 of Q9 is equal to 0, i.e. Q9 is connected to GND, R49 and R50 form a series relationship between +15V and GND, and the base B of Q8 is at level +15V of 1/2, so that collector C of Q8 is turned on with emitter E of Q8, and MBUS _ P outputs level +15V high. When TX-MBUS is low, NPN transistor Q9 is turned off, pin 1 of Q9 is equal to +15V, and R49 and R50 are equal to collector C of Q9, so that collector C of Q8 and emitter E of Q8 are turned off, and MBUS _ P outputs VDD _ L low.
Fig. 4 is a schematic circuit diagram of another first conversion module provided in the embodiment of the present invention, the first conversion module further includes: MBUS _ N is coupled to a third pin of the comparator via a resistor R56, a first pin of the comparator is coupled to a second pin of a tenth transistor via a resistor R54, and a first pin of the tenth transistor is coupled to RX _ MBUS pin.
Specifically, the MBUS master writes a data circuit to the MBUS slave. The feedback data of the MBUS slave machine to the MBUS host machine is that the MBUS slave machine outputs large and small currents as a transmission mechanism, so when the MBUS slave machine outputs currents through an MBUS _ N pin, the large and small currents are grounded after passing through a sampling resistor R6, the level of an MBUS _ N bus is Iout R6 at the moment, but the voltage amplitude is small, the MBUS _ N bus is easily influenced by noise on the line and is not easy to process data, therefore, the utility model discloses an amplifying circuit built by U1 amplifies the level signals on the MBUS _ N line, the amplification factor is equal to (1 + R52/R53), and the stability and the immunity are greatly enhanced through the amplified output signals. The NPN triode Q10 adopts a common emitter amplifying circuit, when the B level of a 2-pin base electrode of the Q10 is higher than 0.7/0.8V, the NPN triode is switched on, the RX-MBUS level is low, when the B level of the 2-pin base electrode of the Q10 is lower than 0.7/0.8V, the Q3 is switched off, and at the moment, the RX-MBUS level is high. Therefore, through the steps, the data information fed back from the MBUS slave to the MBUS master by the large current and the small current can be obtained.
Fig. 5 is a schematic circuit diagram of a second conversion module provided in an embodiment of the present invention, where the second conversion module includes:
the RX-RS485 pin is connected with a seventh pin of the transceiver chip;
the TX-RS485 pin is connected with a sixth pin of the receiving and transmitting chip;
a first pin of the transceiving chip is connected with an RXD pin;
and the third pin of the transceiving chip is connected with the TXD pin.
Specifically, when data 1 is sent to the RS485 bus, that is, the RE and DE pins are at H high level, DI is at L low level, the a output can be obtained as H according to the driver truth table, and the B output is L, when data 0 is sent to the RS485 bus, that is, the RE and DE pins are at L low level, DI is at L low level, the a output can be obtained as L according to the driver truth table, and the B output is H, so that data sending to the RS485 bus is realized;
when receiving data 1 from RS485 bus, namely RE and DE pins default to L low level, DI is L low level, according to receiver truth table, when A-B ≧ 0.05V, RXD output is H high level, when A-B ≦ 0.2V, RXD output is L high level, thus realizing data reception to RS485 bus.
The C6/C34 is a filter capacitor, interference noise waves are eliminated, and the R3/R4 is a pull-up resistor, so that the RXD and TXD networks are guaranteed to be high in level by default.
Where DC _ INPUT is connected to the INPUT power network.
Fig. 2 is a schematic circuit diagram of a processing module provided in an embodiment of the present invention, in which a thirty-second pin of the processing module is connected to an RX-RS485 pin of a second conversion module;
and the thirty-third pin of the processing module is connected with the TX-RS485 pin of the second conversion module.
The MCU controller is a core control circuit, and realizes the functions of data acquisition and transmission control; wherein Y1 and Y2 are crystal oscillator devices of the control system and provide a basic time operation minimum unit for the whole MCU system.
Fig. 6 is a schematic circuit diagram of an adjusting module provided in an embodiment of the present invention, where the adjusting module includes a dial unit, an RX pin of the dial unit is connected to a thirty ninth pin of the processing module, and a TX pin of the dial unit is connected to a forty fourth pin of the processing module.
Specifically, the acquisition signals are read in a self-adaptive mode, through two sets of conversion circuits of the first conversion module and the second conversion module, the conversion of analog signals into TTL digital signals is realized, namely RX-MBUS/RX-485 is converted into RX TTL receiving signals, TX-MBUS/TX-485 is converted into TX TTL sending signals, the MCU realizes the cyclic switching reading of the two sets of TTL signals through the switching of an analog switch S1 of a circuit 8, and as communication lines are connected to a host and a test terminal for a long time, the MCU can acquire the data of the terminal through the conversion circuits after the intelligent terminal is installed on a corresponding network.
Fig. 7 is a schematic circuit diagram of a low power consumption module provided in an embodiment of the present invention, in which the meter data collector includes the low power consumption module, and the low power consumption module includes a transmission chip, wherein a fourth pin of the transmission chip is connected to a thirty-first pin of the processing module;
the fifth pin of the transmission chip is connected with the twenty-fifth pin of the processing module;
the sixth pin of the transmission chip is connected with the twenty-sixth pin of the processing module;
the seventh pin of the transmission chip is connected with the twenty-seventh pin of the processing module;
the eighth pin of the transmission chip is connected with the twenty-eighth pin of the processing module;
the tenth pin of the transmission chip is connected with the twenty-ninth pin of the processing module;
the eleventh pin of the transmission chip is connected with the thirtieth pin of the processing module.
Specifically, through MCU to U3's LORA transmission chip control, can realize the data transmission to the LORAWAN agreement of data collection, MCU carries out the low-power consumption setting to U3's LORA transmission chip after the transmission is accomplished, has accomplished the complete machine low-power consumption design under the dormant state.
Fig. 8 is a schematic circuit diagram of a display module provided in an embodiment of the present invention, in which the meter data collector further includes a display module, the TX module of the processing module is connected to a first end of the first LED, and a second end of the first LED is connected to ground through a resistor R31;
the RX module of the processing module is connected to a first terminal of a second LED, which is connected to ground via a resistor R32.
Specifically, the green LED indicator lamps assist in displaying level status signals of TX and RX, and when TX or RX is at a high level, the corresponding LED indicator lamps are turned on, and when TX or RX is at a low level, the corresponding LED indicator lamps are turned off. Wherein LED1 is the power indicator lamp, lights when the BOOST circuit is normal.
Fig. 9 is a schematic circuit diagram of a power conversion module provided in an embodiment of the present invention; fig. 10 is a schematic circuit diagram of another power conversion module provided in the embodiment of the present invention; fig. 11 is a schematic circuit diagram of another power conversion module provided in an embodiment of the present invention, in which the meter data collector further includes a power conversion module, the power conversion module includes a first conversion unit, a second conversion unit and a third conversion unit, and the first conversion unit is configured to convert an input voltage signal into a +5V power signal; the second conversion unit and the third conversion unit are used for converting the +5V power supply signal into a +15V voltage signal and a-15V voltage signal.
Optionally, the first conversion unit comprises an MP1593DN chip, the second conversion unit comprises a TPS65131RGER chip, and the third conversion unit comprises an XC62FP3002 chip.
Specifically, the whole system is powered by external DC _ INPUT, wherein the INPUT voltage signal is converted into a +5V power supply network by the circuit in fig. 9, and is used by the network with 5V power supply requirement of the whole system; then, the input +5V power supply network voltage is boosted to the power supply voltage for the MBUS function of the + 15V-15V network through fig. 10 and 11, and the +5V power supply voltage is converted to the VCC voltage for the MCU controller through fig. 11.
The embodiment of the utility model provides a, according to the characteristic of RS485 level signal and MBUS level signal, and the shortcoming of present market converting circuit, designed a section integrated with MBUS communication and RS485 communication from the adaptation data acquisition circuit design through discrete component, adapt to simultaneously with LORAWAN wireless transmission module, realized from the function that adaptation data acquisition and wireless data were sent out, the utility model discloses the technique has the advantages of low power dissipation, self-match multiple communication and many terminal equipment communication function, automatic data receiving and dispatching control, and the realization of circuit is realized mainly through discrete component, has reduced manufacturing cost; the whole system can realize the self-adaptive data reading function and can be directly butted with the data reading of various intelligent instrument terminals; the conversion of the sending and receiving circuits of the conventional conversion circuit needs to be controlled by external functions, and the automatic half-duplex communication can be realized without external pin control.
In the technical solution provided by the embodiment of the present invention, the instrument data acquisition device includes a processing module, a first conversion module, a second conversion module and an adjustment module, wherein the first conversion module and the second conversion module are connected to the processing module through the adjustment module, and the first conversion module is used for converting the MBUS signal into the TTL signal; the second conversion module is used for converting the RS485 signal into a TTL signal; the adjusting module is used for selecting the first conversion module or the second conversion module so as to enable the first conversion module to be communicated with the processing module or enable the second conversion module to be communicated with the processing module; the processing module is used for acquiring TTL signals converted from MBUS signals or TTL signals converted from RS485 signals, so that a self-adaptive data reading function is realized, and data reading of various intelligent instrument terminals can be directly realized.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A meter data collector is characterized in that: the instrument data acquisition device comprises a processing module, a first conversion module, a second conversion module and an adjusting module, wherein the first conversion module and the second conversion module are connected with the processing module through the adjusting module, and the first conversion module is used for converting an MBUS signal into a TTL signal;
the second conversion module is used for converting the RS485 signal into a TTL signal;
the adjusting module is used for selecting the first conversion module or the second conversion module so as to enable the first conversion module to be communicated with the processing module or enable the second conversion module to be communicated with the processing module;
the processing module is used for acquiring TTL signals converted from MBUS signals or TTL signals converted from RS485 signals.
2. The meter data collector of claim 1, wherein the first conversion module comprises:
the +15V pin is connected with the first end of a twelfth pole tube, the second end of the twelfth pole tube is connected with the third pin of an eighth transistor, and the first pin of the eighth transistor is connected with the MBUS _ P pin;
the-15V pin is connected with a first end of an eleventh diode, and a second end of the eleventh diode is connected with a first pin of an eighth transistor;
a second pin of the eighth transistor is connected to a first terminal of a resistor R49, a second terminal of the resistor R49 is connected to a first pin of a ninth transistor, and a second pin of the ninth transistor is connected to the TX-MBUS pin through a resistor R51.
3. The meter data collector of claim 2, wherein the first conversion module further comprises: the MBUS _ N is connected to the third pin of the comparator via a resistor R56, the first pin of the comparator is connected to the second pin of the tenth transistor via a resistor R54, and the first pin of the tenth transistor is connected to the RX _ MBUS pin.
4. The meter data collector of claim 1, wherein the second conversion module comprises:
the RX-RS485 pin is connected with a seventh pin of the receiving and transmitting chip;
the TX-RS485 pin is connected with a sixth pin of the receiving and transmitting chip;
a first pin of the transceiving chip is connected with an RXD pin;
and the third pin of the transceiving chip is connected with the TXD pin.
5. The meter data collector of claim 4,
a thirty-second pin of the processing module is connected with an RX-RS485 pin of the second conversion module;
and the thirty-third pin of the processing module is connected with the TX-RS485 pin of the second conversion module.
6. The meter data collector of claim 1, wherein the adjusting module comprises a dial-up unit, wherein an RX pin of the dial-up unit is connected with a thirty ninth pin of the processing module, and a TX pin of the dial-up unit is connected with a fortieth pin of the processing module.
7. The meter data collector of claim 1, comprising a low power consumption module, wherein the low power consumption module comprises a transmission chip, wherein a fourth pin of the transmission chip is connected with a thirty-first pin of the processing module;
the fifth pin of the transmission chip is connected with the twenty-fifth pin of the processing module;
the sixth pin of the transmission chip is connected with the twenty-sixth pin of the processing module;
the seventh pin of the transmission chip is connected with the twenty-seventh pin of the processing module;
the eighth pin of the transmission chip is connected with the twenty-eighth pin of the processing module;
the tenth pin of the transmission chip is connected with the twenty ninth pin of the processing module;
and the eleventh pin of the transmission chip is connected with the thirtieth pin of the processing module.
8. The meter data collector of claim 1, further comprising a display module, wherein the TX module of the processing module is connected to the first end of the first LED, and the second end of the first LED is connected to ground through a resistor R31;
the RX module of the processing module is connected to a first terminal of a second LED, and a second terminal of the second LED is connected to ground through a resistor R32.
9. The instrument data collector of claim 1, further comprising a power conversion module, wherein the power conversion module comprises a first conversion unit, a second conversion unit and a third conversion unit, wherein the first conversion unit is configured to convert an input voltage signal into a +5V power signal; the second conversion unit and the third conversion unit are used for converting the +5V power supply signal into a +15V voltage signal and a-15V voltage signal.
10. The meter data collector of claim 9, wherein the first conversion unit comprises an MP1593DN chip, the second conversion unit comprises a TPS65131RGER chip, and the third conversion unit comprises an XC62FP3002 chip.
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| CN202320006466.7U CN218886450U (en) | 2023-01-03 | 2023-01-03 | Instrument data collector |
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| CN202320006466.7U CN218886450U (en) | 2023-01-03 | 2023-01-03 | Instrument data collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116909197A (en) * | 2023-09-05 | 2023-10-20 | 江苏正泰泰杰赛智能科技有限公司 | MBUS signal conversion module and conversion method for multi-type water meter acquisition |
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2023
- 2023-01-03 CN CN202320006466.7U patent/CN218886450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116909197A (en) * | 2023-09-05 | 2023-10-20 | 江苏正泰泰杰赛智能科技有限公司 | MBUS signal conversion module and conversion method for multi-type water meter acquisition |
| CN116909197B (en) * | 2023-09-05 | 2024-01-05 | 江苏正泰泰杰赛智能科技有限公司 | MBUS signal conversion module and conversion method for multi-type water meter acquisition |
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