CN207249887U - A kind of Internet of Things monitoring terminal - Google Patents

Abstract

A kind of Internet of Things monitoring terminal, including microprocessor, uplink communication unit, downlink communication unit and storage unit；The uplink communication unit includes GPRS module and wireless network module, and the downlink communication unit includes wired M BUS communication modules and small wireless communication module；The uplink communication unit and downlink communication unit are connected by serial ports with microprocessor respectively.The utility model can effectively solve the problems, such as that network signal is bad caused by the reason of water pump composite position, i.e., in the bad position of communication network by the way of wired meter reading, network signal is preferably local, by the way of small wireless meter reading.In addition the radio meter register mode of uplink is added, the operation cost of administrative department of the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties can be reduced, while employs two kinds of meter reading methods of uplink, greatly improves the reliability of meter reading.Administrative department can in time, conveniently monitor the use regimen condition of user, reduce unnecessary waste.

Description

A kind of Internet of Things monitoring terminal

Technical field

The utility model is related to monitoring terminal technical field, particularly it is a kind of can remote meter reading Internet of Things monitoring terminal.

Background technology

With the rapid development of technology of Internet of things, connecting into for certainty between thing and thing.China is that freshwater resources are deficient One of weary country, using water wisely, preventing the waste of water resource becomes modern society's problems faced always.Preferably monitoring occupies Water amount information, in time, conveniently, is accurately transferred to administrative department of the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties, just by civilian family and the use regimen condition of industry and commerce user In the use regimen condition of administrative department monitoring associated user, unnecessary waste is reduced.

Existing water meter user acquisition terminal is primarily present following defect during meter reading：First, uplink GPRS communications mould Block can consume the flow of administrative department, produce certain expense；2nd, due to signal network the problem of or the original of installation site Cause, the signal of GPRS communications cannot be guaranteed completely；3rd, downlink small wireless communication mode be subject to surrounding environment due to being limited System, it is difficult to meet live meter reading requirement.Therefore, the reliability of connection and the connection of thing and thing, becomes important and considers foundation.

Utility model content

It is cost-effective that one kind is provided the purpose of the utility model is to overcome the above-mentioned deficiency of the prior art, it is reliable and stable, The Internet of Things monitoring terminal of strong applicability.

The technical solution of the utility model is：A kind of Internet of Things monitoring terminal, including microprocessor, uplink communication unit, Downlink communication unit and storage unit；The uplink communication unit includes GPRS module and wireless network module, and the downlink is led to Letter unit includes wired M-BUS communication modules and small wireless communication module；Uplink communication unit and the downlink communication unit point It is not connected by serial ports with microprocessor.

Further, the wireless network module is wireless WIFI network module, including radio frequency chip, wireless controller Chip, power control unit and download mouth；The power control unit is connected to the power supply and wireless network module of microprocessor Power supply between, the radio frequency chip connects wireless controller chip, and the wireless controller chip connects microprocessor, The download mouth connection wireless controller chip.

Further, wired M-BUS communication modules include booster circuit, wire signal receiving circuit, wire signal hair Power transmission road, channel selection circuit and overload detection circuit, the wire signal receiving circuit, wire signal transtation mission circuit respectively with Microprocessor connects, the overload detection circuit difference interface channel selection circuit and microprocessor, the channel selection circuit Connect microprocessor；The booster circuit connects the power supply of wired M-BUS communication modules.

Further, the small wireless communication module includes wireless module, power control unit and downloads mouth, and power supply control is single Member is connected between the power supply of microprocessor and the power supply of small wireless communication module；Download mouth connection wireless module, wireless module Connect microprocessor.

Further, the GPRS module is connected with microprocessor communication.

Further, the uplink communication unit and downlink communication unit are connected by TTL serial ports with microprocessor respectively.

Further, the storage unit is electrically connected by SPI interface with microprocessor.

Further, the microprocessor is communicated by GPRS module or wireless network module with main station system.

Further, the GPRS module uses the communication chip of SIMCom.

Further, the microprocessor uses embedded chip.

The beneficial effects of the utility model can effectively solve the network signal caused by the reason of water pump composite position not The problem of good, i.e., in the bad position of communication network by the way of wired meter reading, network signal is preferably local, using small nothing The mode of line meter reading.In addition the radio meter register mode of uplink is added, the operation cost of administrative department of the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties can be reduced, at the same time Two kinds of meter reading methods of uplink are employed, greatly improve the reliability of meter reading.Administrative department can in time, conveniently monitor user Use regimen condition, reduce unnecessary waste.

Brief description of the drawings

Fig. 1 is the structural schematic block diagram of the utility model embodiment；

Fig. 2 is the structural schematic block diagram of the wired M-BUS communication modules of the utility model embodiment；

Fig. 3 is the structural schematic block diagram of the utility model embodiment small wireless communication module；

Fig. 4 is the circuit diagram of the utility model embodiment storage unit；

Fig. 5 is the structural schematic block diagram of the wireless WIFI network module of the utility model embodiment；

Fig. 6 is the circuit diagram of the utility model embodiment GPRS module.

Embodiment

The utility model is described in further details below with reference to Figure of description and specific embodiment.

As shown in Figure 1：A kind of Internet of Things monitoring terminal, including microprocessor, uplink communication unit, downlink communication unit and Storage unit；Uplink communication unit includes GPRS module and wireless WIFI network module, and downlink communication unit includes wired M-BUS Communication module and small wireless communication module；The uplink communication unit and downlink communication unit pass through TTL serial ports and Wei Chu respectively Manage device connection；Storage unit is connected by SPI interface with microprocessor.

Specifically, microprocessor is communicated by SPI interface and external memory unit；By TTL serial ports 1 with it is small Wireless communication module carries out data exchange；Data exchange is carried out by TTL serial ports 2 and wired M-BUS communication modules；Pass through TTL Serial ports 3 carries out data exchange with wireless WIFI network module；Data exchange is carried out by TTL serial ports 4 and GPRS module.This implementation Example is communicatively coupled by TTL serial modes, and for being directly connected with micro processor leg, transmission speed is fast, and connects Line is simple.

In the present embodiment, microprocessor preferably uses ST high-performance Cotex hardware platforms, and for core, chip internal possesses rich Rich serial ports and stronger data-handling capacity；It is aided with large capacity SPI serial memory cells again, storing the water meter of specific user makes Use information.Downgoing communication mode supports wired M-bus communication modes and small wireless communication mode, to adapt to different meters or not With the demand of meter reading environment.Uplink communication mode supports GPRS module communication mode and wireless WIFI communication modes.When local It when having wireless WIFI signal, can be communicated by wireless WIFI signal, reduce the meter reading cost of department of the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties.The present embodiment is each A function realized using modularized design, above-mentioned various interfaces all with system progress Phototube Coupling, so as to effectively improve and be The safety and reliability of system.Microprocessor is communicated by GPRS module or wireless network module with main station system.

As shown in Figure 2：Wired M-BUS communication modules include booster circuit, wire signal receiving circuit, wire signal and send Circuit, channel selection circuit and overload detection circuit.Wire signal receiving circuit, wire signal transtation mission circuit respectively with microprocessor Device connects, overload detection circuit difference interface channel selection circuit and microprocessor, channel selection circuit connection microprocessor；Rise Volt circuit connects the power supply of wired M-BUS communication modules.Booster circuit is used for the boost in voltage of power supply supply to meter reading when institute Required voltage, meter during for meter reading use.Channel selection circuit is used to select different meter reading passages in meter reading.Overload When detection circuit is used for the load excessive in a certain channel loop, microprocessor is notified in time and disconnects this passage.In use, Wired M-BUS communication modules can be connected on wired data of water meter in respective channel with copy reading.

As shown in Figure 3：Small wireless communication module includes wireless module, power control unit and downloads mouth, and power supply control is single Member is connected between the power supply of microprocessor and the power supply of small wireless communication module；Download mouth connection wireless module, wireless module Connect microprocessor.Power control unit implements microprocessor to the power on of small wireless communication module and disconnects control, example If power control unit is a switch, by lower switch, so that by the power on of microprocessor and small wireless communication module, then press One lower switch, microprocessor and the power supply of small wireless communication module are disconnected；Mouth is downloaded to be used to program is downloaded and debugged. Small wireless communication module is the core cell of short distance kilowatt meter reading-out system, which can be in the frequency band of 470-510MHz, will The data reading system of wireless watermeter in the range of 1km is into the storage unit of microprocessor.

As shown in Figure 4：The serial SPI Flash memory chips of large capacity are used in storage unit U1, overcome conventional use The defects of EEPROM is stored（EEPROM memory capacity is small, and price is high, and write time length, writes the characteristics of slow）, 12 can be stored The information of storage, is transmitted to main station system, for correlation by the collection information of more than a month by uplink communication unit as needed Personnel inquiry is put on record, the data of copy reading is backed up in time.Wherein resistance R1, R2, R3, R4 realizes the impedance matching of spi bus.It is logical The power supply of FLASH_PWR pins control SPI Flash memory chips is crossed, reduces power consumption, FLASH_PWR connection microprocessors.

As shown in Figure 5：Wireless WIFI network module includes radio frequency chip, wireless controller chip, power supply control list Member and download mouth；Power control unit is connected between the power supply of microprocessor and the power supply of wireless network module, is wirelessly penetrated Frequency chip connects wireless controller chip, and wireless controller chip connection microprocessor, downloads mouth connection wireless controller chip. Power control unit implements microprocessor unit to the power on of wireless WIFI network module and disconnects control, and it is nothing to download mouth The download program interface of line WIFI network module, as emulation and program debugging.Wireless controller chip is connect by communication antenna The radiofrequency signal of receipts sends radio frequency chip to.Wireless WIFI network module is the core cell of LAN kilowatt meter reading-out system.Make Used time, the unit can be returned local meter related data copy reading in main station system by wireless WIFI signal.

As shown in Figure 6：GPRS module uses SIMCom communication chips, passing through small wireless mode or M-BUS bus sides The meter data that formula collects are transmitted to main station system, the foundation as system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties's charge by mobile or unicom network.

XS6 is SIM card holder, loads corresponding network card.The supply voltage of communication chip U2 is 3.4V ~ 4.5V, there is two Frequency range, is respectively that EGSM900 and DCS1800, M900A can automatically search two frequency ranges, can also be set by AT orders Put frequency range；It has been internally integrated GSM base band, memory, GSM radio frequencies, antennal interface.The data of storage are passed through this passage, upload Into main station system.

In conclusion the present embodiment uses ST high-performance Cotex hardware platforms core in order to control, communicating in use, working as The bad position of network, can be by the way of wired meter reading, i.e., wired M-BUS communication modules will be used by M-BUS bus modes The meter data reading system at family is passed into the storage unit of microprocessor, then by GPRS module by mobile or unicom network It is sent to main station system；It is preferably local in network signal, and it is closer to the distance when, can be by the way of small wireless meter reading；When in order to The meter reading cost of department of the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties is reduced, can be that is, wireless by the way of wireless WIFI when saving mobile or unicom network traffics The meter reading order that WIFI network module is issued according to main station system, passes through local WLAN, wireless controller chip Meter reading order is sent to radio frequency chip through communication antenna, and list will be stored by wireless WIFI network module by microprocessor Meter data transfer in member is into main station system., can be accurately single by storage according to the demand of communication main station administrative staff The purchase water that is preserved in member, with regimen condition, be sent back to background interface, understand the service condition of user's water meter in time.

The present embodiment can effectively solve the problems, such as that network signal is bad caused by the reason of water pump composite position, that is, exists For the bad position of communication network by the way of wired meter reading, network signal is preferably local, by the way of small wireless meter reading. Due to adding wireless WIFI meter reading methods, the operation cost of administrative department of the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties can be reduced, while employs two kinds of uplink Meter reading method, greatly improves the reliability of meter reading.Administrative department can in time, conveniently monitor the use regimen condition of user, subtract Few unnecessary waste.

Claims (10)

1. a kind of Internet of Things monitoring terminal, including microprocessor, uplink communication unit, downlink communication unit and storage unit；Its It is characterized in that, the uplink communication unit includes GPRS module and wireless WIFI network module, and the downlink communication unit includes Wired M-BUS communication modules and small wireless communication module；The uplink communication unit and downlink communication unit pass through serial ports respectively It is connected with microprocessor.

2. Internet of Things monitoring terminal according to claim 1, it is characterised in that the wireless WIFI network module includes nothing Line radio frequency chip, wireless controller chip, power control unit and download mouth；The power control unit is connected to microprocessor Power supply and wireless WIFI network module power supply between, the radio frequency chip connects wireless controller chip, the nothing Lane controller chip connects microprocessor, the download mouth connection wireless controller chip.

3. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that wired M-BUS communication modules bag Booster circuit, wire signal receiving circuit, wire signal transtation mission circuit, channel selection circuit and overload detection circuit are included, it is described Wire signal receiving circuit, wire signal transtation mission circuit are connected with microprocessor respectively, and the overload detection circuit connects respectively Channel selection circuit and microprocessor, the channel selection circuit connect microprocessor；The booster circuit connects wired M-BUS The power supply of communication module.

4. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the small wireless communication module includes Wireless module, power control unit and download mouth, power control unit are connected to the power supply and small wireless communication mould of microprocessor Between the power supply of block；Download mouth connection wireless module, wireless module connection microprocessor.

5. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the GPRS module and microprocessor Communication connection.

6. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the uplink communication unit and downlink Communication unit is connected by TTL serial ports with microprocessor respectively.

7. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the storage unit passes through SPI interface It is electrically connected with microprocessor.

8. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the microprocessor passes through GPRS moulds Block or wireless WIFI network module communicate with main station system.

9. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the GPRS module uses SIMCom Communication chip.

10. Internet of Things monitoring terminal according to claim 1 or 2, it is characterised in that the microprocessor is using embedded Chip.