CN211786660U - Hand-held type data collection station - Google Patents
Hand-held type data collection station Download PDFInfo
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- CN211786660U CN211786660U CN201922453672.9U CN201922453672U CN211786660U CN 211786660 U CN211786660 U CN 211786660U CN 201922453672 U CN201922453672 U CN 201922453672U CN 211786660 U CN211786660 U CN 211786660U
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Abstract
The utility model belongs to the technical field of the intelligence is checked meter, concretely relates to hand-held type data collection station, a hand-held type data collection station, including the handheld ware body, its characterized in that: the intelligent control device is characterized by further comprising a lithium battery, an LCD display screen, a 16-key keyboard and a control circuit, wherein the lithium battery, the LCD display screen, the 16-key keyboard and the control circuit are arranged inside the body, and the control circuit comprises a main control unit, a 4G wireless receiving and transmitting module, a USB interface circuit, an M-BUS interface circuit, an RS485 interface circuit, an LORA wireless interface circuit, an LCD unit circuit, a keyboard input circuit and a power supply unit. The main control unit is an MCU (microprogrammed control unit), and the MCU is provided with an RTC (real time clock) real-time clock circuit and an EEPROM (electrically erasable programmable read-only memory) storage circuit with the capacity of 8M; by adopting the scheme, the utility model can collect the meter data of various types and interfaces; batch centralized meter reading can be realized; the meter reading data can be uploaded in time; the information display is clear, the operation is simple and convenient, and the standby time is long.
Description
Technical Field
The utility model belongs to the technical field of the intelligence is checked meter, concretely relates to hand-held type data collection station.
Background
At present, a handheld data acquisition unit is used in the market, and when the interface is single and faces various types of water meters, the installation and debugging are inconvenient; the load capacity of the M-BUS interface or the RS485 interface is small, only a single meter can be read, and the meter cannot be read in a centralized manner.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a handheld data collector is provided aiming at the defects, and the collector provides three interfaces of M-BUS, RS485 and wireless LORA aiming at different types of water meters, so that the requirements of data acquisition and engineering installation and debugging of most water meters on the market can be met; the collector is internally provided with a high-capacity lithium battery and a high-current booster circuit, so that power supply for multiple meters can be realized and data can be collected in a centralized manner.
The utility model provides a technical scheme that its technical problem adopted as follows:
a hand-held data collector comprises a collector body, a control circuit, a 12V lithium battery, an LCD display screen and a 16-key keyboard, wherein the control circuit, the 12V lithium battery, the LCD display screen and the 16-key keyboard are arranged in the collector body; the control circuit comprises a main control unit, a 4G wireless transceiver module, a USB interface circuit, an M-BUS interface circuit, an RS485 interface circuit, an LORA wireless interface circuit, an LCD unit circuit, a keyboard input circuit and a power supply unit. The main control unit is an MCU (microprogrammed control unit), and the MCU is provided with an RTC (real time clock) real-time clock circuit and an EEPROM (electrically erasable programmable read-only memory) storage circuit with the capacity of 8M.
The 4G transceiver circuit comprises a 4G module and an SIM card circuit, is powered by 3.7V, is connected with the MCU through a TTL serial port, is communicated with the server, and uploads and receives data.
The USB interface circuit is powered by a USB interface of an upper computer, is connected with the MCU through a TTL serial port, communicates with the upper computer, and uploads and receives data.
The RS485 interface circuit is connected with the MCU through the TTL serial port and is connected with an external RS485 interface water meter through an RS485 bus; and 12V power supply is carried out on the external water meter, data of the external water meter are collected, and the data are stored in an EEPROM.
The M-BUS interface circuit is connected with the MCU through a TTL serial port and is connected with the external M-BUS interface water meter through an M-BUS; and 24V power supply is carried out on the external water meter, data of the external water meter are collected, and the data are stored in an EEPROM.
The LORA wireless interface circuit is connected with the MCU through a TTL serial port, supplies power at 5V and communicates through a wireless external LORA water meter; and collecting external water meter data and storing the data in an EEPROM.
Furthermore, the LCD driving circuit comprises an LCD display screen and a driving circuit, and displays an operation menu and collects data.
Furthermore, the 16-key keyboard circuit comprises a 16-key keyboard and an input circuit, and is used for inputting operation instructions and inquiring data.
The utility model has the advantages that: by adopting the scheme, the meter data of various types and interfaces can be collected; batch centralized meter reading can be realized; the meter reading data can be uploaded in time; the information display is clear, the operation is simple and convenient, and the standby time is long.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a block diagram of the control circuit of the present invention.
Fig. 2 is a connection diagram of the MCU of the present invention.
Fig. 3 is a circuit diagram of the 4G module according to the present invention.
Fig. 4 is a circuit diagram of the USB interface according to the present invention.
Fig. 5 is a circuit diagram of the M-BUS of the present invention.
Fig. 6 is a circuit diagram of RS485 of the present invention.
Fig. 7 is a circuit diagram of the LORA interface circuit of the present invention.
Fig. 8 is a circuit diagram of the LCD driving circuit and a circuit diagram of the keyboard of the present invention.
Fig. 9 is a circuit diagram of the power supply unit of the present invention.
Fig. 10 is a circuit diagram of a 12V charging circuit according to the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
A hand-held data collector comprises a collector body, and further comprises a 12V lithium battery, an LCD display screen, a keyboard and a control circuit which are arranged inside the collector body, wherein the control circuit shown in figure 1 comprises a main control unit, a 4G wireless receiving and transmitting module, a USB interface circuit, an M-BUS interface circuit, an RS485 interface circuit, an LORA wireless interface circuit, an LCD unit circuit, a keyboard input circuit and a power supply unit.
As shown in fig. 2, the MCU master control unit includes a CPU circuit, an RTC circuit, and an EEPROM circuit, where the RTC provides an accurate clock, and provides a clock and a timing meter reading time for the collector; EEPROM capacity 8M, storing table address and table data; the CPU is connected and communicated with the 4G module or the USB through the TTL serial port, and uploads and receives data; the external meter data can be collected through TTL and M-BUS/RS485/LORA circuit connection.
As shown in fig. 3, the 4G wireless transceiver unit includes a 4G module IC3 and a SIM card circuit, and the IC3 is connected to the MCU in a TTL serial manner to upload data through a 4G network.
The USB interface circuit shown in FIG. 4 uses FT232 chip, and the upper computer is powered and connected with MCU in TTL serial mode to communicate with the upper computer.
U7 shown in FIG. 5 is an M-BUS interface circuit, 24V power supply, connected with MCU in TTL serial port mode, and used for controlling U12 to send 12V-24V voltage signal to BUS; U13A receives a current signal on the bus and sends the current signal to the MCU through TTL; U13B detects an overcurrent on the bus and outputs an alarm signal.
The U3 shown in FIG. 6 is an RS485 interface circuit, and is connected with an external RS485 bus through a K1 and connected with an MCU through a TTL serial port, so that the communication between the MCU and an external meter is realized.
J2 shown in FIG. 7 is the LORA module interface, providing 5V power, with the TTL interface communicating with the LORA module.
J3 shown in FIG. 8 is the interface circuit of LCD display screen, J1 is the interface circuit of 16-key keyboard.
U14 in FIG. 9 is LDO-5V power supply, U15 is 3.7V switching power supply; u8 is a 24V switching power supply.
The K3 shown in fig. 10 is a 12V charging input terminal, and the K4 is a 12V lithium battery access terminal, so that 12V charging is realized and 12V power supply is provided for the control circuit.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.
Claims (6)
1. The utility model provides a hand-held type data collection station, includes the handset body, its characterized in that: still include inside lithium cell, LCD display screen, 16 key keyboards, the control circuit of body, control circuit includes main control unit, 4G wireless transceiver module, USB interface circuit, M-BUS interface circuit, RS485 interface circuit, LORA wireless interface circuit, LCD unit circuit, keyboard input circuit, electrical unit, the main control unit is MCU, and MCU is equipped with RTC real-time clock circuit, capacity 8M's EEPROM storage circuit.
2. The hand-held data collector of claim 1, wherein: the 4G wireless transceiver circuit and the USB interface circuit are connected with the MCU through TTL serial ports to realize the uplink communication of the handheld data collector, namely, the collector is communicated with the PC through the USB interface to upload or receive data; or upload data to a server over a 4G network.
3. The hand-held data collector of claim 1, wherein: the RS485 interface circuit, the M-BUS interface circuit and the LORA wireless interface circuit are connected with the MCU through TTL serial ports, downlink communication of the handheld data collector is achieved, namely the collector is connected with the corresponding type of water meter through the RS485 interface circuit, the M-BUS interface circuit and the LORA wireless interface circuit, and meter data are collected.
4. The hand-held data collector of claim 1, wherein: the LCD driving circuit comprises an LCD display screen and a driving circuit.
5. The hand-held data collector of claim 1, wherein: the 16-key keyboard and the input circuit.
6. The hand-held data collector of claim 1, wherein: the power supply unit comprises a 12V lithium battery, an LDO-5V circuit, a 24V boosting switch power supply circuit, a 3.7V voltage reduction switch power supply circuit and a 12V lithium battery charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453672.9U CN211786660U (en) | 2019-12-30 | 2019-12-30 | Hand-held type data collection station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453672.9U CN211786660U (en) | 2019-12-30 | 2019-12-30 | Hand-held type data collection station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211786660U true CN211786660U (en) | 2020-10-27 |
Family
ID=72977872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922453672.9U Active CN211786660U (en) | 2019-12-30 | 2019-12-30 | Hand-held type data collection station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211786660U (en) |
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2019
- 2019-12-30 CN CN201922453672.9U patent/CN211786660U/en active Active
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