CN202394357U - Data acquisition device for large-scale public building energy consumption monitoring system - Google Patents
Data acquisition device for large-scale public building energy consumption monitoring system Download PDFInfo
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- CN202394357U CN202394357U CN201120412401XU CN201120412401U CN202394357U CN 202394357 U CN202394357 U CN 202394357U CN 201120412401X U CN201120412401X U CN 201120412401XU CN 201120412401 U CN201120412401 U CN 201120412401U CN 202394357 U CN202394357 U CN 202394357U
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Abstract
The utility model discloses a data acquisition device for a large-scale public building energy consumption monitoring system. A plurality of monitoring subnets are distributed in a whole monitored building. Each monitoring subnet comprises the data acquisition device, and a remote transmission metering basic meter which is connected with the data acquisition device through an RS485 bus, a remote transmission metering basic meter which is connected with the data acquisition device through an M-Bus, and a remote transmission metering basic meter which is connected with the data acquisition device through a ZigBee wireless network. The data acquisition device communicates with each energy consumption sub-item metering basic meter through a bus or in a wireless mode, analyzes and processes data, and transmits the data to a monitoring center through a network by using a general packet radio service (GPRS) module of the data acquisition device. The monitoring center receives and stores the energy consumption data, analyzes and processes the energy consumption data, and then displays the energy consumption data to users, and history energy consumption data can be queried by users through a data management function. The data acquisition device has strong data communication capacity, data processing capacity and equipment environmental adaptability.
Description
Technical field
The utility model belongs to wireless sensor network, fieldbus, embedded system technology field, is specifically related to a kind of data acquisition unit that is used for large-scale Gongjian's energy consumption monitoring system.
Background technology
Architectural energy consumption and industrial consumption energy, traffic have been consumed energy and have been called three " big power consumers ", and the energy utilization rate of the medium-and-large-sized public building of building energy consumption is especially low.China belongs to energy scarcity, carries out energy consumption monitoring and in time obtains the building energy consumption data, has important practical significance to improve energy utilization rate.
Carry out building energy conservation, the key of formulating strategy of Saving Energy is in time to obtain the building energy consumption data, and energy consumption data can obtain through making up the energy consumption monitoring system.Large-scale Gongjian's energy consumption monitoring system comprises metering base table, data acquisition unit, the monitoring center that supports teletransmission.Teletransmission metering base table is deployed in the monitoring buildings each separate energy consumption is measured; Energy consumption data transfers to data acquisition unit through communication mode such as wired or wireless; Data acquisition unit is handled the back to energy consumption data and through remote transmission energy consumption data is transferred to monitoring center; The user can be through monitoring center's management energy consumption monitoring net, collection monitoring information.Therefore, data acquisition unit is one of key component of whole energy consumption monitoring system.
At present, some energy consumption monitoring systems have been developed.This has solved the problem of obtaining of energy consumption data to a great extent, for formulating conservation measures on the macroscopic view full and accurate, reliable data support is provided.But also there is following problem in these data acquisition units: the metering separate of 1) generally being unrealized, can only measure the energy consumption data such as power consumption or water consumption of individual event, and be unfavorable for formulating more concrete conservation measures.2) communicating by letter between data acquisition unit and energy consumption measure base table generally adopted bus mode, and only adopted a kind of among RS485 or the M-Bus, makes the user have limitation aspect the selection of base table and the replacing.
Along with the development of technology such as embedded, radio communication, improve existing energy consumption monitoring system, solving problems such as the energy consumption monitoring device communication interface is single becomes possibility.Data acquisition unit after the improvement has two types of communication interfaces simultaneously.One type is bus mode, the characteristics that bus mode has simply, cost is low, and adopt in the place of suitable wiring easily, and possess M-Bus and two kinds of bus modes of RS485, and the range of choice of user's base table is wider; Another kind of is the ZigBee wireless mode, and this interface is fit to temporarily be not easy to lay the place employing of bus.
Summary of the invention
The utility model is to the deficiency of prior art, and a kind of data acquisition unit that is used for large-scale Gongjian's energy consumption monitoring system is provided.
The concrete scheme of the utility model:
The utility model comprises power management module, GPRS module MC35i, M-Bus module, ZigBee wireless module HZ2012, RS485 module and processor module.
Power management module comprises: step-down rectifying circuit, be used for input industrial frequency AC electric rectification be direct current supply-15V voltage conversion circuit ,+the 15V voltage conversion circuit;-15V voltage conversion circuit converts the output voltage of step-down rectifying circuit into-15V voltage supply M-bus module; + 15V voltage conversion circuit converts the output voltage of step-down rectifying circuit into+15V voltage supply M-Bus module and 5V voltage conversion circuit; 5V voltage is supplied with GPRS module MC35i to the 5V voltage conversion circuit and the 3.3V voltage conversion circuit is supplied with ZigBee wireless module HZ20124, RS485 module and processor module with 3.3V voltage.
GPRS module MC35i is used for communicating by letter between data acquisition unit and monitoring center, is connected with processor module 6 through UART0.
The M-Bus module is used for communicating by letter between data acquisition unit and M-Bus teletransmission base table, is connected with processor module through UART3.
ZigBee wireless communication module HZ20124 is used to realize communicating by letter between data acquisition unit and ZigBee teletransmission base table, is connected with processor module through UART1.
RS485 module core is RS485 driver SP3485, is used to realize communicating by letter between data acquisition unit and RS485 teletransmission base table, is connected with processor module through UART2.
Processor module adopts the processor LPC2368FBD100 of ARM kernel; LPC2368FBD100 is used to control M-Bus module, ZigBee module HZ20124, RS485 module and communicates by letter with the processor die interblock, and with the data that collect through transferring to monitoring center through control GPRS module MC35i after the analyzing and processing.
Described step-down rectifying circuit comprises transformer T1, a bridge heap BD1; + 15V voltage conversion circuit comprises 2 polar capacitor C1, C6,1, one voltage stabilizing diode D1 of an inductance L and a slice power supply voltage stabilizing chip VR1 LM2576;-15V voltage conversion circuit comprises 2 polar capacitor C2, C4,2 filter capacitor C3, C5 and a slice power management chip VR2 LM7915; The 5V voltage conversion circuit comprises 2 polar capacitor C7 of electric capacity, C8,2, one voltage stabilizing diode D2 of an inductance L and a slice power management chip VR3 LM2596S; 3.3V voltage conversion circuit comprises 2 filter capacitor C9, C12,2 polar capacitor C10, C11, light emitting diode DS1 and a slice power supply voltage stabilizing chip VR4 SPX1117-3.3.
The center tap ground connection of band centre-tapped transformer T1, primary coil input 220V power frequency ac voltage, secondary coil is connected with the interchange end of bridge heap BD1.The positive pole of bridge heap BD1 is connected with+15V voltage conversion circuit, and the negative pole that bridge is piled BD1 is connected with-15V voltage conversion circuit;
The positive pole of 1 pin of the positive pole of the first polar capacitor C1 and power management chip LM2576, step-down rectifying circuit jackshaft heap BD1 is connected in+the 15V voltage conversion circuit; The minus earth of the first polar capacitor C1; 3 pins of power management chip LM2576,5 pin ground connection; One end of 4 pins of power management chip LM2576 and first inductance L 1, the positive pole of the second polar capacitor C6 are connected; 2 pins of power management chip LM2576 are connected with the other end of first inductance L 1, the negative electrode of the first voltage stabilizing diode D1 connects the plus earth of the first voltage stabilizing diode D1, the minus earth of the second polar capacitor C6.
The end ground connection of the anodal and second filter capacitor C5 of the GND pin of the end of the center tap of band centre-tapped transformer T1, the first filter capacitor C3, power management chip LM7915, quadripolarity capacitor C 4 in the positive pole of the 3rd polar capacitor C2 and the step-down rectifying circuit in-the 15V voltage conversion circuit; The negative pole of the 3rd polar capacitor C2 is connected with negative pole, the other end of the first filter capacitor C3 and the Vin pin of power management chip VR2 LM7915 of step-down rectifying circuit jackshaft heap BD1, and the Vout pin of power management chip VR2 LM7915 is connected with the negative pole of quadripolarity capacitor C 4, the other end of the second filter capacitor C5.
The positive pole of the 5th polar capacitor C7 is connected with+the output terminal of 15V voltage conversion circuit, 1 pin of power management chip VR3 LM2596S in the 5V voltage conversion circuit; 3 pins of the negative pole of the 5th polar capacitor C7, power management chip LM2596S, 5 pins of power management chip LM2596S, the anode of the second voltage stabilizing diode D2 and the minus earth of sextupole property capacitor C 8; 4 pins of power management chip LM2596S are connected with an end of inductance L 2, the positive pole of sextupole property capacitor C 8, and 2 pins of power management chip LM2596S are connected with the other end of second inductance L 2, the plus earth of the second voltage stabilizing diode D2.
3.3V the end of the 3rd filter capacitor C9 in the voltage conversion circuit is connected with the positive pole of the output terminal of 5V voltage conversion circuit, the 7th polar capacitor C10,3 pins of power management chip SPX1117-3.3; 1 pin of the negative pole of the other end of the 3rd filter capacitor C9 and the 7th polar capacitor C10, power management chip SPX1117-3.3, the negative electrode of ends of the earth property capacitor C 11, the other end of the 4th filter capacitor C12 and the plus earth of light emitting diode DS1,2 pins of power management chip SPX1117-3.3 are connected with the end of the positive pole of the second polar capacitor C11, the second filter capacitor C12, the anode of light emitting diode DS1.
13 pins of ZigBee wireless module HZ2012,15 pins, 17 pins and the output terminal of 3.3V voltage conversion circuit are connected; 21 pins of ZigBee wireless module HZ2012,23 pins, 25 pins, the equal ground connection of 27 pins; 18 pins of ZigBee wireless module are connected with 62 pins of processor LPC2368FBD100 in the processor module; 20 pins of ZigBee wireless module are connected with 63 pins of processor LPC2368FBD100 in the processor module, and all the other pins of ZigBee wireless module are all unsettled.
The RS485 module comprises driver SP3485, first resistance R 1, second resistance R 2, connector J1.1 pin of driver SP3485 is connected with 49 pins of processor LPC2368FBD100 in the processor module; 4 pins of driver SP3485 are connected with 48 pins of processor LPC2368FBD100 in the processor module; 3 pins of driver SP3485 are connected with 46 pins of processor LPC2368FBD100 in the processor module; The 5 pin ground connection of driver SP3485; 8 pins of driver SP3485 are connected with an end of first resistance R 1, the output terminal of 3.3V voltage conversion circuit; 6 pins of driver SP3485 are connected with 1 pin of the other end of first resistance R 1, connector J1, and 7 pins of driver SP3485 are connected the other end ground connection of second resistance R 2 with an end of second resistance R 2,2 pins of connector J1.
The GPRS modular circuit comprises GPRS module MC35i and diode D3.18 pins of GPRS module MC35i are connected with 99 pins of processor LPC2368FBD100 in the processor module; 19 pins of MC35i are connected with 98 pins of processor LPC2368FBD100 in the processor module; 6 pins of MC35i, 7 pins, 8 pins, 9 pins, the equal ground connection of 10 pins; The anode of diode D3 is connected with the output of 5V voltage conversion circuit, and 13 pins of the negative electrode of diode D3 and MC35i are connected, and all the other pins of MC35i are all unsettled.
The M-Bus module comprises a slice RS232 transceiver MAX3232 U5; 6 capacitor C 13, C14, C15, C16, C17, C18; 11 resistance R 3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13,3 diode D4, D5, D6,3 PNP triode Q1, Q2, Q3; 2 NPN triode Q4, Q5,1 connector J3.
1 pin of RS232 transceiver MAX3232 U5 is connected with the end of the 5th filter capacitor C13; 3 pins of MAX3232 are connected with the other end of the 5th filter capacitor C13; 4 pins of MAX3232 are connected with the end of the 6th filter capacitor C14; 5 pins of MAX3232 are connected with the other end of the 6th filter capacitor C14, and 7 pins of MAX3232 are connected with an end of the 3rd resistance R 3, and 8 pins of MAX3232 connect with an end of the 4th resistance R 4 and are connected; 9 pins of MAX3232 are connected with 6 pins of processor LPC2368FBD100 in the processor module; 7 pins of processor LPC2368FBD100 in 10 pins of MAX3232 and the processor module are connected, the end of 15 pins of MAX3232 and the 7th filter capacitor C15, the end ground connection of the 8th filter capacitor C16, and 6 pins of MAX3232 are connected with the other end of the 7th filter capacitor C15; 2 pins of MAX3232 are connected with the other end of the 8th filter capacitor C16, and 16 pins of MAX3232 are connected with the output terminal of 3.3V voltage conversion circuit.The end of the 9th filter capacitor C17 is connected the other end ground connection of the 9th filter capacitor C17 with the+deferent segment of 15V voltage conversion circuit, the emitter of a PNP triode Q1, an end of the 5th resistance R 5, an end of the 6th resistance R 6.The base stage of the one PNP triode Q1 is connected with the collector of the other end of the 6th resistance R 6, a NPN triode Q4, and the collector of a PNP triode Q1 and the base stage of the anode of the 4th diode D6, the 2nd PNP triode Q2, an end of the 7th resistance R 7 are connected.The emitter of the negative electrode of the 4th diode D6 and the 2nd PNP triode Q2, the other end of the 3rd resistance R 3 are connected.The collector of the 2nd PNP triode Q2 and the other end of the 7th resistance R 7 ,-output terminal of 15V voltage conversion circuit is connected.One end of the base stage of the anode of the other end of the 4th resistance R 4 and the second diode D4, the 3rd PNP triode Q3, the 8th resistance R 8 is connected.The grounded emitter of the negative electrode of the second diode D4 and the 3rd PNP triode Q3.The collector of the 3rd PNP triode Q3 is connected with an end of the 9th resistance R 9.The output terminal of the other end of the 8th resistance R 8 and-15V voltage transitions is connected.One end ground connection of the tenth resistance R 10, an end of the other end of the tenth resistance R 10 and the 11 resistance R 11, the base stage of the 2nd NPN triode Q5 are connected.The other end of the 11 resistance R 11 is connected with the anode of the 3rd diode D5.The output terminal of the negative electrode of the 3rd diode D5 and-15V voltage conversion circuit is connected.The collector of the 2nd NPN triode Q5 is connected with the other end of the base stage of a NPN triode, the 5th resistance R 5, and the emitter of the 2nd NPN triode Q5 is connected with an end of the other end of the 9th resistance R 9, the 12 resistance R 12.The output terminal of the other end of the 12 resistance R 12 and-15V voltage conversion circuit is connected.The emitter of the one NPN triode Q4 is connected with an end of the 13 resistance R 13,1 pin of connector J3.2 pins of the other end of the 13 resistance R 13 and connector J3 ,-output terminal of 15V voltage conversion circuit is connected.The output terminal of the end of the tenth filter capacitor C18 and-15V voltage conversion circuit is connected the other end ground connection of the tenth filter capacitor C18.
Processor module adopts the processor LPC2368FBD100 of ARM kernel; Its 11 pin, 14 pins, 31 pins, 41 pins, 55 pins, 72 pins, 83 pins, the equal ground connection of 97 pins, 10 pins, 12 pins, 13 pins, 28 pins, 42 pins, 54 pins, 71 pins, 84 pins, 96 pins and 3.3V voltage conversion circuit are connected.The equal ground connection of all the other pin.
The utility model is compared with prior art, has the following advantages:
1. support multiple base table communication interface.The notebook data collector comprises interfaces such as RS485, M-Bus, ZigBee radio communication, and base table is measured in teletransmissions most on the support the market, to the user wider base table range of choice is provided.And bus and wireless mode combine, and are not disposed the restriction in space, ground.
2. its communication ability is strong, network coverage is wide.The realization of notebook data collector employing GPRS network is communicated by letter with remote monitoring center, has the advantages that power consumption is little, cost is low, network capacity is big.
3. data-handling capacity is strong, and the upgrading potentiality are big.The notebook data collector adopts ARM7 kernel high-performance processor, and data-handling capacity is strong.And peripheral hardware is abundant on the processor piece, has the big characteristics of upgrading potentiality.
4. facility environment adaptability is strong.Each parts of notebook data collector all adopt the device that meets the technical grade standard, take into full account protection against the tide, factor such as anticorrosion, and the system that makes has stronger adaptive faculty under severe environmental conditions.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the power management module circuit diagram in the utility model;
Fig. 3 is the ZigBee wireless module interface schema in the utility model;
Fig. 4 is the RS485 module circuit diagram in the utility model;
Fig. 5 is the GPRS module circuit diagram in the utility model;
Fig. 6 is the M-Bus module principle figure in the utility model;
Fig. 7 is the processor module schematic diagram in the utility model;
Fig. 8 is the integral frame synoptic diagram of the utility model one specific embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model comprises power management module 1, GPRS module MC35i 2, M-Bus module 3, ZigBee wireless module HZ2012 4, RS485 module 5 and processor module 6.Wherein,
GPRS module MC35i 2 is used for communicating by letter between data acquisition unit and monitoring center, is connected with processor module 6 through UART0.
M-Bus module 3 is used for communicating by letter between data acquisition unit and M-Bus teletransmission base table, is connected with processor module 6 through UART3.
ZigBee wireless communication module HZ20124 is used to realize communicating by letter between data acquisition unit and ZigBee teletransmission base table, is connected with processor module 6 through UART1.
RS485 module 5 cores are RS485 driver SP3485, are used to realize communicating by letter between data acquisition unit and RS485 teletransmission base table, are connected with processor module 6 through UART2.
As shown in Figure 2, power management module comprise step-down rectifying circuit ,+the 15V voltage conversion circuit ,-15V voltage conversion circuit, 5V voltage conversion circuit and 3.3V voltage conversion circuit.Wherein, step-down rectifying circuit comprises the band centre-tapped transformer T1 of a specification for input 220V power frequency ac voltage output 2*18V DC voltage, a bridge heap BD1; + 15V voltage conversion circuit comprises 2 polar capacitor C1, C6,1, one voltage stabilizing diode D1 of an inductance L and a slice power supply voltage stabilizing chip VR1 LM2576;-15V voltage conversion circuit comprises 2 polar capacitor C2, C4,2 filter capacitor C3, C5 and a slice power management chip VR2 LM7915; The 5V voltage conversion circuit comprises 2 polar capacitor C7, C8,2, one voltage stabilizing diode D2 of an inductance L and a slice power management chip VR3 LM2596S; 3.3V voltage conversion circuit comprises 2 filter capacitor C9, C12,2 polar capacitor C10, C11, light emitting diode DS1 and a slice power supply voltage stabilizing chip VR4 SPX1117-3.3.
The center tap ground connection of band centre-tapped transformer T1, primary coil input 220V power frequency ac voltage, secondary coil is connected with the interchange end of bridge heap BD1.The positive pole of bridge heap BD1 is connected with+15V voltage conversion circuit, and the negative pole that bridge is piled BD1 is connected with-15V voltage conversion circuit;
The positive pole of 1 pin of the positive pole of the first polar capacitor C1 and power management chip LM2576, step-down rectifying circuit jackshaft heap BD1 is connected in+the 15V voltage conversion circuit; The minus earth of the first polar capacitor C1; 3 pins of power management chip LM2576,5 pin ground connection; One end of 4 pins of power management chip LM2576 and first inductance L 1, the positive pole of the second polar capacitor C6 are connected; 2 pins of power management chip LM2576 are connected with the other end of first inductance L 1, the negative electrode of the first voltage stabilizing diode D1 connects the plus earth of the first voltage stabilizing diode D1, the minus earth of the second polar capacitor C6.
The end ground connection of the anodal and second filter capacitor C5 of the GND pin of the end of the center tap of band centre-tapped transformer T1, the first filter capacitor C3, power management chip LM7915, quadripolarity capacitor C 4 in the positive pole of the 3rd polar capacitor C2 and the step-down rectifying circuit in-the 15V voltage conversion circuit; The negative pole of the 3rd polar capacitor C2 is connected with negative pole, the other end of the first filter capacitor C3 and the Vin pin of power management chip VR2 LM7915 of step-down rectifying circuit jackshaft heap BD1, and the Vout pin of power management chip VR2 LM7915 is connected with the negative pole of quadripolarity capacitor C 4, the other end of the second filter capacitor C5.
The positive pole of the 5th polar capacitor C7 is connected with+the output terminal of 15V voltage conversion circuit, 1 pin of power management chip VR3 LM2596S in the 5V voltage conversion circuit; 3 pins of the negative pole of the 5th polar capacitor C7, power management chip LM2596S, 5 pins of power management chip LM2596S, the anode of the second voltage stabilizing diode D2 and the minus earth of sextupole property capacitor C 8; 4 pins of power management chip LM2596S are connected with an end of inductance L 2, the positive pole of sextupole property capacitor C 8, and 2 pins of power management chip LM2596S are connected with the other end of second inductance L 2, the plus earth of the second voltage stabilizing diode D2.
3.3V the end of the 3rd filter capacitor C9 in the voltage conversion circuit is connected with the positive pole of the output terminal of 5V voltage conversion circuit, the 7th polar capacitor C10,3 pins of power management chip SPX1117-3.3; 1 pin of the negative pole of the other end of the 3rd filter capacitor C9 and the 7th polar capacitor C10, power management chip SPX1117-3.3, the negative electrode of ends of the earth property capacitor C 11, the other end of the 4th filter capacitor C12 and the plus earth of light emitting diode DS1,2 pins of power management chip SPX1117-3.3 are connected with the end of the positive pole of the second polar capacitor C11, the second filter capacitor C12, the anode of light emitting diode DS1.
As shown in Figure 3; 13 pins of ZigBee wireless module HZ2012,15 pins, 17 pins and the output terminal of 3.3V voltage conversion circuit are connected; 21 pins of ZigBee wireless module HZ2012,23 pins, 25 pins, the equal ground connection of 27 pins; 18 pins of ZigBee wireless module are connected with 62 pins of processor LPC2368FBD100 in the processor module; 20 pins of ZigBee wireless module are connected with 63 pins of processor LPC2368FBD100 in the processor module, and all the other pins of ZigBee wireless module are all unsettled.
As shown in Figure 4, the RS485 module comprises driver SP3485, first resistance R 1, second resistance R 2, connector J1.1 pin of driver SP3485 is connected with 49 pins of processor LPC2368FBD100 in the processor module; 4 pins of driver SP3485 are connected with 48 pins of processor LPC2368FBD100 in the processor module; 3 pins of driver SP3485 are connected with 46 pins of processor LPC2368FBD100 in the processor module; The 5 pin ground connection of driver SP3485; 8 pins of driver SP3485 are connected with an end of first resistance R 1, the output terminal of 3.3V voltage conversion circuit; 6 pins of driver SP3485 are connected with 1 pin of the other end of first resistance R 1, connector J1, and 7 pins of driver SP3485 are connected the other end ground connection of second resistance R 2 with an end of second resistance R 2,2 pins of connector J1.
As shown in Figure 5, the GPRS modular circuit comprises GPRS module MC35i and diode D3.18 pins of GPRS module MC35i are connected with 99 pins of processor LPC2368FBD100 in the processor module; 19 pins of MC35i are connected with 98 pins of processor LPC2368FBD100 in the processor module; 6 pins of MC35i, 7 pins, 8 pins, 9 pins, the equal ground connection of 10 pins; The anode of diode D3 is connected with the output of 5V voltage conversion circuit, and 13 pins of the negative electrode of diode D3 and MC35i are connected, and all the other pins of MC35i are all unsettled.
As shown in Figure 6; The M-Bus module comprises a slice RS232 transceiver MAX3232 U5,6 capacitor C 13, C14, C15, C16, C17, C18,11 resistance R 3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13; 3 diode D4, D5, D6; 3 PNP triode Q1, Q2, Q3,2 NPN triode Q4, Q5,1 connector J3.
1 pin of RS232 transceiver MAX3232 U5 is connected with the end of the 5th filter capacitor C13; 3 pins of MAX3232 are connected with the other end of the 5th filter capacitor C13; 4 pins of MAX3232 are connected with the end of the 6th filter capacitor C14; 5 pins of MAX3232 are connected with the other end of the 6th filter capacitor C14, and 7 pins of MAX3232 are connected with an end of the 3rd resistance R 3, and 8 pins of MAX3232 connect with an end of the 4th resistance R 4 and are connected; 9 pins of MAX3232 are connected with 6 pins of processor LPC2368FBD100 in the processor module; 7 pins of processor LPC2368FBD100 in 10 pins of MAX3232 and the processor module are connected, the end of 15 pins of MAX3232 and the 7th filter capacitor C15, the end ground connection of the 8th filter capacitor C16, and 6 pins of MAX3232 are connected with the other end of the 7th filter capacitor C15; 2 pins of MAX3232 are connected with the other end of the 8th filter capacitor C16, and 16 pins of MAX3232 are connected with the output terminal of 3.3V voltage conversion circuit.The end of the 9th filter capacitor C17 is connected the other end ground connection of the 9th filter capacitor C17 with the+deferent segment of 15V voltage conversion circuit, the emitter of a PNP triode Q1, an end of the 5th resistance R 5, an end of the 6th resistance R 6.The base stage of the one PNP triode Q1 is connected with the collector of the other end of the 6th resistance R 6, a NPN triode Q4, and the collector of a PNP triode Q1 and the base stage of the anode of the 4th diode D6, the 2nd PNP triode Q2, an end of the 7th resistance R 7 are connected.The emitter of the negative electrode of the 4th diode D6 and the 2nd PNP triode Q2, the other end of the 3rd resistance R 3 are connected.The collector of the 2nd PNP triode Q2 and the other end of the 7th resistance R 7 ,-output terminal of 15V voltage conversion circuit is connected.One end of the base stage of the anode of the other end of the 4th resistance R 4 and the second diode D4, the 3rd PNP triode Q3, the 8th resistance R 8 is connected.The grounded emitter of the negative electrode of the second diode D4 and the 3rd PNP triode Q3.The collector of the 3rd PNP triode Q3 is connected with an end of the 9th resistance R 9.The output terminal of the other end of the 8th resistance R 8 and-15V voltage transitions is connected.One end ground connection of the tenth resistance R 10, an end of the other end of the tenth resistance R 10 and the 11 resistance R 11, the base stage of the 2nd NPN triode Q5 are connected.The other end of the 11 resistance R 11 is connected with the anode of the 3rd diode D5.The output terminal of the negative electrode of the 3rd diode D5 and-15V voltage conversion circuit is connected.The collector of the 2nd NPN triode Q5 is connected with the other end of the base stage of a NPN triode, the 5th resistance R 5, and the emitter of the 2nd NPN triode Q5 is connected with an end of the other end of the 9th resistance R 9, the 12 resistance R 12.The output terminal of the other end of the 12 resistance R 12 and-15V voltage conversion circuit is connected.The emitter of the one NPN triode Q4 is connected with an end of the 13 resistance R 13,1 pin of connector J3.2 pins of the other end of the 13 resistance R 13 and connector J3 ,-output terminal of 15V voltage conversion circuit is connected.The output terminal of the end of the tenth filter capacitor C18 and-15V voltage conversion circuit is connected the other end ground connection of the tenth filter capacitor C18.
Fig. 7 is a processor module in the utility model.Processor module adopts the processor LPC2368FBD100 of ARM kernel; Its 11 pin, 14 pins, 31 pins, 41 pins, 55 pins, 72 pins, 83 pins, the equal ground connection of 97 pins, 10 pins, 12 pins, 13 pins, 28 pins, 42 pins, 54 pins, 71 pins, 84 pins, 96 pins and 3.3V voltage conversion circuit are connected.The equal ground connection of all the other pin.
Fig. 8 is the integral frame synoptic diagram of the utility model one specific embodiment.Be distributed with several monitoring subnets 7 in the whole monitoring buildings.Monitoring comprises data acquisition unit 8 in the subnet 7, and the teletransmission metering base table 13 that is connected with data acquisition unit 8 through RS485 bus 11, the teletransmission that is connected with data acquisition unit 8 through M-Bus bus 12 measure base table 14, pass through the teletransmission that ZigBee wireless network 15 is connected with data acquisition unit 8 and measure base table 10.Data acquisition unit 8 through bus or wireless mode realize with each metering separate energy consumption base table between communicate by letter, the GPRS module 9 of Usage data collection device 8 is transferred to monitoring center 17 through network 16 after analysis and the deal with data.Monitoring center 17 receives and the storage energy consumption data, after analyzing and handling, shows the user, and can supply the historical energy consumption data of user inquiring through data management function.
The course of work of the utility model is:
The course of work of data acquisition unit that can be used for large-scale Gongjian's energy consumption monitoring system is following: data acquisition unit is through communicating by letter between bus or the control of ZigBee wireless mode and each metering separate energy consumption base table; Can be behind the subitem energy consumption data that the data acquisition unit processing collected arrives through the GPRS module with data transmission to remote monitoring center, and data acquisition unit also can receive the order that monitoring center sends through the GPRS module.Monitoring center manages data through data management function, but the real-time exhibition data are given the user, and the inquiry of historical data service perhaps is provided.
Claims (1)
1. a data acquisition unit that is used for large-scale Gongjian's energy consumption monitoring system comprises power management module, GPRS module MC35i, M-Bus module, ZigBee wireless module HZ2012, RS485 module and processor module, it is characterized in that:
Power management module comprises: step-down rectifying circuit, be used for input industrial frequency AC electric rectification be direct current supply-15V voltage conversion circuit ,+the 15V voltage conversion circuit;-15V voltage conversion circuit converts the output voltage of step-down rectifying circuit into-15V voltage supply M-bus module; + 15V voltage conversion circuit converts the output voltage of step-down rectifying circuit into+15V voltage supply M-Bus module and 5V voltage conversion circuit; 5V voltage is supplied with GPRS module MC35i to the 5V voltage conversion circuit and the 3.3V voltage conversion circuit is supplied with ZigBee wireless module HZ20124, RS485 module and processor module with 3.3V voltage;
GPRS module MC35i is used for communicating by letter between data acquisition unit and monitoring center, is connected with processor module 6 through UART0;
The M-Bus module is used for communicating by letter between data acquisition unit and M-Bus teletransmission base table, is connected with processor module through UART3;
ZigBee wireless communication module HZ20124 is used to realize communicating by letter between data acquisition unit and ZigBee teletransmission base table, is connected with processor module through UART1;
RS485 module core is RS485 driver SP3485, is used to realize communicating by letter between data acquisition unit and RS485 teletransmission base table, is connected with processor module through UART2;
Processor module adopts the processor LPC2368FBD100 of ARM kernel; LPC2368FBD100 is used to control M-Bus module, ZigBee module HZ20124, RS485 module and communicates by letter with the processor die interblock, and with the data that collect through transferring to monitoring center through control GPRS module MC35i after the analyzing and processing;
Described step-down rectifying circuit comprises transformer T1, a bridge heap BD1; + 15V voltage conversion circuit comprises 2 polar capacitor C1, C6,1, one voltage stabilizing diode D1 of an inductance L and a slice power supply voltage stabilizing chip VR1 LM2576;-15V voltage conversion circuit comprises 2 polar capacitor C2, C4,2 filter capacitor C3, C5 and a slice power management chip VR2 LM7915; The 5V voltage conversion circuit comprises 2 polar capacitor C7, C8,2, one voltage stabilizing diode D2 of an inductance L and a slice power management chip VR3 LM2596S; 3.3V voltage conversion circuit comprises 2 filter capacitor C9, C12,2 polar capacitor C10, C11, light emitting diode DS1 and a slice power supply voltage stabilizing chip VR4 SPX1117-3.3;
The center tap ground connection of band centre-tapped transformer T1; Primary coil input 220V power frequency ac voltage; The interchange end of secondary coil and bridge heap BD1 is connected, and the positive pole of bridge heap BD1 is connected with+15V voltage conversion circuit, and the negative pole that bridge is piled BD1 is connected with-15V voltage conversion circuit;
The positive pole of 1 pin of the positive pole of the first polar capacitor C1 and power management chip LM2576, step-down rectifying circuit jackshaft heap BD1 is connected in+the 15V voltage conversion circuit; The minus earth of the first polar capacitor C1; 3 pins of power management chip LM2576,5 pin ground connection; One end of 4 pins of power management chip LM2576 and first inductance L 1, the positive pole of the second polar capacitor C6 are connected; 2 pins of power management chip LM2576 are connected with the other end of first inductance L 1, the negative electrode of the first voltage stabilizing diode D1 connects the plus earth of the first voltage stabilizing diode D1, the minus earth of the second polar capacitor C6;
The end ground connection of the anodal and second filter capacitor C5 of the GND pin of the end of the center tap of band centre-tapped transformer T1, the first filter capacitor C3, power management chip LM7915, quadripolarity capacitor C 4 in the positive pole of the 3rd polar capacitor C2 and the step-down rectifying circuit in-the 15V voltage conversion circuit; The negative pole of the 3rd polar capacitor C2 is connected with negative pole, the other end of the first filter capacitor C3 and the Vin pin of power management chip VR2 LM7915 of step-down rectifying circuit jackshaft heap BD1, and the Vout pin of power management chip VR2 LM7915 is connected with the negative pole of quadripolarity capacitor C 4, the other end of the second filter capacitor C5;
The positive pole of the 5th polar capacitor C7 is connected with+the output terminal of 15V voltage conversion circuit, 1 pin of power management chip VR3 LM2596S in the 5V voltage conversion circuit; 3 pins of the negative pole of the 5th polar capacitor C7, power management chip LM2596S, 5 pins of power management chip LM2596S, the anode of the second voltage stabilizing diode D2 and the minus earth of sextupole property capacitor C 8; 4 pins of power management chip LM2596S are connected with an end of inductance L 2, the positive pole of sextupole property capacitor C 8, and 2 pins of power management chip LM2596S are connected with the other end of second inductance L 2, the plus earth of the second voltage stabilizing diode D2;
3.3V the end of the 3rd filter capacitor C9 in the voltage conversion circuit is connected with the positive pole of the output terminal of 5V voltage conversion circuit, the 7th polar capacitor C10,3 pins of power management chip SPX1117-3.3; 1 pin of the negative pole of the other end of the 3rd filter capacitor C9 and the 7th polar capacitor C10, power management chip SPX1117-3.3, the negative electrode of ends of the earth property capacitor C 11, the other end of the 4th filter capacitor C12 and the plus earth of light emitting diode DS1,2 pins of power management chip SPX1117-3.3 are connected with the end of the positive pole of the second polar capacitor C11, the second filter capacitor C12, the anode of light emitting diode DS1;
13 pins of ZigBee wireless module HZ2012,15 pins, 17 pins and the output terminal of 3.3V voltage conversion circuit are connected; 21 pins of ZigBee wireless module HZ2012,23 pins, 25 pins, the equal ground connection of 27 pins; 18 pins of ZigBee wireless module are connected with 62 pins of processor LPC2368FBD100 in the processor module; 20 pins of ZigBee wireless module are connected with 63 pins of processor LPC2368FBD100 in the processor module, and all the other pins of ZigBee wireless module are all unsettled;
The RS485 module comprises driver SP3485, first resistance R 1, second resistance R 2, connector J1; 1 pin of driver SP3485 is connected with 49 pins of processor LPC2368FBD100 in the processor module; 4 pins of driver SP3485 are connected with 48 pins of processor LPC2368FBD100 in the processor module; 3 pins of driver SP3485 are connected with 46 pins of processor LPC2368FBD100 in the processor module; The 5 pin ground connection of driver SP3485,8 pins of driver SP3485 are connected with an end of first resistance R 1, the output terminal of 3.3V voltage conversion circuit, and 6 pins of driver SP3485 are connected with 1 pin of the other end of first resistance R 1, connector J1; 7 pins of driver SP3485 are connected the other end ground connection of second resistance R 2 with an end of second resistance R 2,2 pins of connector J1;
The GPRS modular circuit comprises GPRS module MC35i and diode D3; 18 pins of GPRS module MC35i are connected with 99 pins of processor LPC2368FBD100 in the processor module; 19 pins of MC35i are connected with 98 pins of processor LPC2368FBD100 in the processor module; 6 pins of MC35i, 7 pins, 8 pins, 9 pins, the equal ground connection of 10 pins; The anode of diode D3 is connected with the output of 5V voltage conversion circuit, and 13 pins of the negative electrode of diode D3 and MC35i are connected, and all the other pins of MC35i are all unsettled;
The M-Bus module comprises a slice RS232 transceiver MAX3232 U5; 6 capacitor C 13, C14, C15, C16, C17, C18; 11 resistance R 3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13,3 diode D4, D5, D6,3 PNP triode Q1, Q2, Q3; 2 NPN triode Q4, Q5,1 connector J3;
1 pin of RS232 transceiver MAX3232 U5 is connected with the end of the 5th filter capacitor C13; 3 pins of MAX3232 are connected with the other end of the 5th filter capacitor C13; 4 pins of MAX3232 are connected with the end of the 6th filter capacitor C14; 5 pins of MAX3232 are connected with the other end of the 6th filter capacitor C14; 7 pins of MAX3232 are connected with an end of the 3rd resistance R 3, and 8 pins of MAX3232 connect with an end of the 4th resistance R 4 and are connected, and 9 pins of MAX3232 are connected with 6 pins of processor LPC2368FBD100 in the processor module; 7 pins of processor LPC2368FBD100 in 10 pins of MAX3232 and the processor module are connected; The end ground connection of the end of 15 pins of MAX3232 and the 7th filter capacitor C15, the 8th filter capacitor C16,6 pins of MAX3232 are connected with the other end of the 7th filter capacitor C15, and 2 pins of MAX3232 are connected with the other end of the 8th filter capacitor C16; 16 pins of MAX3232 are connected with the output terminal of 3.3V voltage conversion circuit; The end of the 9th filter capacitor C17 is connected with+the deferent segment of 15V voltage conversion circuit, the emitter of a PNP triode Q1, an end of the 5th resistance R 5, an end of the 6th resistance R 6, the other end ground connection of the 9th filter capacitor C17, and the base stage of a PNP triode Q1 is connected with the collector of the other end of the 6th resistance R 6, a NPN triode Q4; The base stage of the collector of the one PNP triode Q1 and the anode of the 4th diode D6, the 2nd PNP triode Q2, an end of the 7th resistance R 7 are connected; The emitter of the negative electrode of the 4th diode D6 and the 2nd PNP triode Q2, the other end of the 3rd resistance R 3 are connected, the collector of the 2nd PNP triode Q2 and the other end of the 7th resistance R 7 ,-output terminal of 15V voltage conversion circuit is connected, and an end of the anode of the other end of the 4th resistance R 4 and the second diode D4, the base stage of the 3rd PNP triode Q3, the 8th resistance R 8 is connected; The grounded emitter of the negative electrode of the second diode D4 and the 3rd PNP triode Q3; The collector of the 3rd PNP triode Q3 is connected with an end of the 9th resistance R 9, and the output terminal of the other end of the 8th resistance R 8 and-15V voltage transitions is connected an end ground connection of the tenth resistance R 10; One end of the other end of the tenth resistance R 10 and the 11 resistance R 11, the base stage of the 2nd NPN triode Q5 are connected; The other end of the 11 resistance R 11 is connected with the anode of the 3rd diode D5, and the output terminal of the negative electrode of the 3rd diode D5 and-15V voltage conversion circuit is connected, and the collector of the 2nd NPN triode Q5 is connected with the other end of the base stage of a NPN triode, the 5th resistance R 5; The emitter of the 2nd NPN triode Q5 is connected with an end of the other end of the 9th resistance R 9, the 12 resistance R 12; The output terminal of the other end of the 12 resistance R 12 and-15V voltage conversion circuit is connected, and the emitter of a NPN triode Q4 is connected with an end of the 13 resistance R 13,1 pin of connector J3,2 pins of the other end of the 13 resistance R 13 and connector J3 ,-output terminal of 15V voltage conversion circuit is connected; The output terminal of the end of the tenth filter capacitor C18 and-15V voltage conversion circuit is connected the other end ground connection of the tenth filter capacitor C18;
Processor module adopts the processor LPC2368FBD100 of ARM kernel; Its 11 pin, 14 pins, 31 pins, 41 pins, 55 pins, 72 pins, 83 pins, the equal ground connection of 97 pins; 10 pins, 12 pins, 13 pins, 28 pins, 42 pins, 54 pins, 71 pins, 84 pins, 96 pins and 3.3V voltage conversion circuit are connected, the equal ground connection of all the other pin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120412401XU CN202394357U (en) | 2011-10-26 | 2011-10-26 | Data acquisition device for large-scale public building energy consumption monitoring system |
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| CN201120412401XU CN202394357U (en) | 2011-10-26 | 2011-10-26 | Data acquisition device for large-scale public building energy consumption monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877856A (en) * | 2016-12-28 | 2017-06-20 | 深圳市展恒电子有限公司 | For the slave station interface arrangement of MBUS |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877856A (en) * | 2016-12-28 | 2017-06-20 | 深圳市展恒电子有限公司 | For the slave station interface arrangement of MBUS |
| CN106877856B (en) * | 2016-12-28 | 2021-02-02 | 深圳市展恒电子有限公司 | Slave station interface device for MBUS |
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