CN205246729U - A device that is used for resident to take accuse table SMS notice collecting fee - Google Patents

Abstract

The utility model discloses a device for notifying payment by short message of a resident fee control meter, which comprises a CPU main control unit, a data acquisition unit, a wireless communication unit, a storage unit and a power supply management unit all interacting with the CPU main control unit. The input end of the power management unit is connected to the AC-220V power supply at the front end of the fee control meter, and the output end is converted into the working voltage for the CPU main control unit, data acquisition unit, wireless communication unit and storage unit; the utility model collects in real time through the data acquisition unit The cost and power data of the user fee control meter are processed by the CPU main control unit and sent to the user terminal. When the remaining amount of the meter and the remaining power are insufficient, the user can be notified to pay the bill in time by SMS, which greatly reduces the cost caused by manual reminders. waste of human, financial and time.

Description

A device for notifying payment by short message of resident fee control meter

【Technical field】

The utility model relates to a device for notifying payment by short message of a resident fee control meter, in particular to a device capable of realizing online real-time monitoring of indicators such as the remaining amount and remaining power of multiple fee control electric energy meters at the same time and when the alarm threshold is reached A terminal device that sends SMS reminders for recharge to resident users when the value is exceeded.

【Background technique】

With the deepening of my country's power system reform in recent years and the successful implementation of distribution network transformation projects in large and medium-sized cities, the power supply system must undergo a series of automation and intelligent transformation to ensure that the power distribution and transmission system can provide electricity efficiently, fairly and conveniently. Provide users with high-quality services. However, due to the centralized installation of the electric energy meters in the grass-roots units, when the remaining amount of the electric energy meter reaches the alarm threshold, the backlight alarm of the electric energy meter cannot notify the residential users in a timely and effective manner.

The above-mentioned problems will lead to: 1. The power company forcibly cuts off the power supply of the user without knowing that his electricity bill balance is insufficient; 2. The power company needs to send a special person to the community to urge the bill. Forcibly cutting off the power will easily cause civil disputes between the power company and the user. However, for those areas where the installation locations of electric meters are relatively scattered, manual reminders will waste a lot of human resources, and the real-time performance is also poor.

【Content of utility model】

The purpose of this utility model is to solve the above problems, and to provide a device for notifying payment by short message of the residential fee control meter. Reminder, thereby reducing the maintenance cost of the meter.

In order to achieve the above object, the utility model adopts the following technical solutions to achieve:

A device for notifying payment by short message of a residential fee control meter, including a housing, and a main control circuit board arranged in the housing, the main control circuit board is provided with a CPU main control unit, and both interact with the CPU main control unit The data acquisition unit, wireless communication unit, storage unit and power management unit, the output end is converted to the working voltage for the CPU main control unit, data acquisition unit, wireless communication unit and storage unit; the lower end of the housing is provided with a power interface and a data interface , and an antenna connected to the wireless communication unit is installed, the power management unit is connected to the AC-220V power supply at the front end of the fee control meter through the power interface, the data acquisition unit is connected to the fee control meter through the data interface, and the front of the housing is equipped with a running status display panel; where,

The data acquisition unit is used to collect the cost and electricity data of at least one cost control meter, and send the collected data to the CPU main control unit;

The CPU main control unit processes the data collected by the data acquisition unit, converts it into cost and power information, and notifies the end user through the wireless communication unit when the remaining amount of the meter or the remaining power is insufficient;

The storage unit includes a Flash data storage unit and an EEPROM parameter storage unit. The Flash data storage unit is used to store the historical data of the electric energy meter, and the EEPROM parameter storage unit is used to store the parameters of the electric energy meter.

The further improvement of the utility model is:

The data acquisition unit adopts a polarized RS-485 acquisition unit for collecting data of four electric energy meters; the data interface includes an RS-485 positive interface and an RS-485 negative interface.

The CPU main control unit is connected with an infrared maintenance unit for querying and setting communication parameters, master station number and user number, and the infrared maintenance unit and the wireless communication unit interact with the CPU main control unit through a serial bus;

The infrared maintenance unit includes a 38K infrared transmission modulation circuit and an infrared transmission and reception unit, and the transmission and reception ends of the infrared transmission and reception unit are set on the running status display panel.

The Flash data storage unit interacts with the CPU main control unit through the SPI bus, and the EEPROM parameter storage unit interacts with the CPU main control unit through the I ² C bus.

The CPU main control unit is connected to a watchdog reset unit for forced reset when the CPU main control unit is down due to an abnormality through an I/O interface; the CPU main control unit and the wireless communication unit are all connected to the AC- When the 220V power supply is cut off, it discharges to the CPU main control unit and the wireless communication unit, so that the CPU main control unit stores data, and the wireless communication unit completes the data transmission.

The wireless communication unit adopts a GPRS network processing unit, the antenna is a GPRS antenna, and the bottom of the casing is also provided with a SIM card slot; the CPU main control unit adopts a 32-bit high-speed processor modeled as STM32F103.

The housing is divided into two parts that are buckled up and down, and are fixed by at least four bolts.

The upper end of the back of the housing is provided with a hook for hanging the whole device, and the whole device is installed in the watch box through the hook.

The middle part of the housing is relatively provided with an upper draw-in slot and a lower draw-in slot, and the upper draw-in slot and the lower draw-in slot are clamped in the guide rails of the watch box, and the whole device is installed in the watch box.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model collects the fee and power data of the user fee control meter in real time through the data acquisition unit, and sends it to the user terminal after being processed by the CPU main control unit. When the remaining amount of the meter and the remaining power of the meter are insufficient, the user can be notified in time to pay by SMS. It greatly reduces the waste of manpower, financial resources and time brought by manual reminders.

Further, the uplink communication of the utility model is 376.1 protocol, which can log in to the GPRS master station, and the downlink collects electric energy meters through RS485. This device can be used in areas where the success rate of meter reading is low due to reasons such as poor carrier communication effects, which can completely solve the on-site problems. If the meter data is not uploaded in time and the copying rate is low, the data integrity of the electricity consumption information collection system can be further improved.

Further, the utility model only needs to configure conventional parameters such as communication parameters, main station telephone number, user telephone number, etc. without more configuration work, and improves the flexibility of the equipment without increasing the design cost. And the workload of parameter configuration is greatly reduced, thereby reducing the maintenance cost of the equipment.

Further, the working voltage of the utility model can be directly taken from the front end of the meter, which has the advantages of small size, low power consumption, and convenient installation. It also has two installation methods of guide rail type and hook type, which can effectively cope with the complex environment on site. Construction Convenient and reliable.

【Description of drawings】

Fig. 1 is the electrical structure schematic diagram of the present utility model;

Fig. 2 is a power management circuit diagram of the utility model;

Fig. 3 is a circuit diagram of the GPRS network processing unit of the present utility model;

Fig. 4 is the front view of the overall structure of the utility model;

Fig. 5 is the left view of the utility model;

Fig. 6 is the rear view of the utility model;

Fig. 7 is the bottom view of the utility model;

Fig. 8 is a schematic diagram of the utility model clamped in the meter box.

【detailed description】

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1 to Fig. 8, the utility model comprises a casing 1, and a main control circuit board arranged in the casing 1, a CPU main control unit is arranged on the main control circuit board, and all interact with the CPU main control unit Data acquisition unit, wireless communication unit, storage unit and power management unit, the output end is converted into the operating voltage for the CPU main control unit, data acquisition unit, wireless communication unit and storage unit; As shown in Figure 7, the lower end of the housing 1 Set the power interface and data interface, and install the antenna connected to the wireless communication unit. The power management unit is connected to the AC-220V power supply at the front end of the fee control meter through the power interface. The data acquisition unit is connected to the fee control meter through the data interface. The shell 1 The front of the is provided with a running status display panel 3; wherein,

The data acquisition unit is used to collect the cost and electricity data of at least one fee control meter, and send the collected data to the CPU main control unit; the data acquisition unit adopts a polarized RS-485 acquisition unit, which is used to collect four electric energy meters The data; the data interface includes RS-485 positive interface and RS-485 negative interface.

The wireless communication unit adopts a GPRS network processing unit, the antenna is a GPRS antenna 6, and the bottom of the housing 1 is also provided with a SIM card slot 8; the CPU main control unit adopts a 32-bit high-speed processor whose model is STM32F103.

The storage unit includes a Flash data storage unit and an EEPROM parameter storage unit. The Flash data storage unit is used to store the historical data of the electric energy meter, and the EEPROM parameter storage unit is used to store the parameters of the electric energy meter. The Flash data storage unit interacts with the CPU main control unit through the SPI bus, and the EEPROM parameter storage unit interacts with the CPU main control unit through the I ² C bus.

The CPU main control unit processes the data collected by the data acquisition unit, converts it into cost and power information, and notifies the end user through the wireless communication unit when the remaining amount of the meter or the remaining power is insufficient;

The CPU main control unit is connected with an infrared maintenance unit for querying and setting communication parameters, master station number and user number. Both the infrared maintenance unit and the wireless communication unit interact with the CPU main control unit through the serial bus; the infrared maintenance unit includes 38K Infrared sending and modulating circuit and infrared sending and receiving unit, the sending and receiving end of the infrared sending and receiving unit are set on the running state display panel 3 . The CPU main control unit is connected to the watchdog reset unit for forced reset when the CPU main control unit is down due to an abnormality through the I/O interface; both the CPU main control unit and the wireless communication unit are connected with the AC-220V power supply When the power is off, discharge to the CPU main control unit and the wireless communication unit, so that the CPU main control unit stores data, and the wireless communication unit completes the data transmission work of the farad capacitor charging and discharging unit.

The housing 1 is divided into two parts that are buckled up and down, and are fixed by at least four bolts 7 . The utility model can install the whole device in the meter box in two ways:

1. The upper end of the back of the housing 1 is provided with a hook 2 for hanging the whole device, and the whole device is installed in the watch box through the hook 2 .

2. As shown in Figures 5, 6 and 7, the middle part of the housing 1 is provided with an upper card slot 4 and a lower card slot 5, and the upper card slot 4 and the lower card slot 5 are clamped in the guide rail 9 of the meter box, and the entire The device is installed in the meter box.

Circuit structure principle of the present utility model:

The main control circuit of the utility model includes a power management unit, a GPRS network processing unit, an RS-485 acquisition unit, an infrared maintenance unit, a farad capacitor charging and discharging unit, a Flash data storage unit with a storage space of 4M, and an EEPROM parameter storage unit with a storage space of 32K Unit, Flash data storage unit and EEPROM parameter storage unit are respectively connected to the CPU main control unit through SPI bus and I ² C bus. The CPU main control unit adopts a 32-bit high-speed processor modeled as STM32F103. The power management unit includes 78L05 chip, differential mode inductor, integrated power chip and rectifier bridge, and the input terminal is connected to AC-220V power supply. The GPRS network processing unit includes a M590E-R2 communication chip and a C707 SIM card holder through physical isolation.

The CPU main control unit is connected with the GPRS network processing unit and the infrared maintenance unit through the serial bus. The infrared maintenance unit comes with a 38K infrared sending modulation circuit and receiving circuit. The Flash data storage unit is connected with the CPU main control unit through the SPI bus, and is used for storing the historical data of the smart energy meter. The EEPROM parameter storage unit is connected with the CPU main control unit through the I ² C bus, and is used for storing important parameters of the smart energy meter.

The CPU main control unit is connected with a farad capacitor charging and discharging unit through the I/O interface. When the external 220V AC power supply is disconnected, the farad capacitor charging and discharging unit supplies power for the CPU main control unit and the GPRS network processing unit, and can maintain 1~ Power supply for 2 minutes is used for storage of important data of the main control unit. The CPU main control unit is connected with a hardware watchdog chip through the I/O interface, which is used to forcibly reset the CPU main control unit and return to the normal working state when the CPU main control unit is down due to an abnormality.

As shown in Fig. 2, it is a circuit diagram of the power management unit of the present utility model. The power management unit includes a 78L05 chip, a differential mode inductor, an integrated power chip, and a rectifier bridge. The GPRS network processing unit includes a M590E-R2 communication chip and a C707 SIM card holder through physical isolation.

As shown in Figure 3, the CPU main control unit is also connected to the SP706 dedicated reset chip through the I/O interface. In the charging and discharging unit of the farad capacitor, in the case of normal external AC-220V power supply, self-charging, after the external power supply is disconnected, 5V DC is provided to the CPU main control unit and GPRS network processing unit, and the duration is 1 ~2 minutes, this time period is used for saving important parameters of the CPU main control unit and transferring data after power failure. The CPU main control unit of the utility model is respectively connected with the green LED status light and the red LED running light through the I/O interface.

Structural principle of the present utility model:

The CPU main control unit of the utility model is the core of the whole system. Firstly, the voltage, current, power, forward active value, remaining amount, and remaining power of up to four intelligent electric energy meters are collected through the serial bus through the RS485 data acquisition unit. Real-time data, and the 72MHZARM7 chip in the CPU main control unit performs statistics, processing, alarming and uploading of the collected indicator data. After the indicators and real-time monitoring data are processed, they are written into the AT45DB321Flash chip with a storage space of 4M through the SPI bus. It can store the historical curve data of 4 smart watches for 31 consecutive days and the daily frozen data of 62 days at most. The CPU main control unit supports the 376.1 master station communication protocol in the uplink, and supports the 645 smart meter collection protocol in the downlink, which can collect smart meter data at the same time and realize physical isolation.

The CPU main control unit compares the remaining amount and remaining power of the smart meter collected with the alarm threshold value in the meter. When the alarm threshold value is reached, it will send an alarm message to the designated user. The content of the message is serial number, name, The current remaining amount and prompts for timely recharge information, and if the user has not recharged, will be sent twice at intervals of 24 hours. Through the above process, the user can be notified in a timely and effective manner that the remaining amount is insufficient, which greatly reduces the waste of manpower caused by manual reminders in the community.

The above content is only to illustrate the technical idea of the utility model, and cannot limit the protection scope of the utility model. Any changes made on the basis of the technical solution according to the technical idea proposed by the utility model all fall into the scope of the utility model. within the scope of protection of the claims.

Claims (10)

1. A device for notifying payment by short message of the residential fee control meter, characterized in that it comprises a housing (1), and a main control circuit board arranged in the housing (1), the main control circuit board is provided with a CPU The main control unit, as well as the data acquisition unit, wireless communication unit, storage unit and power management unit that all interact with the CPU main control unit, and the output end is converted into power for the CPU main control unit, data acquisition unit, wireless communication unit and storage unit Working voltage; the lower end of the housing (1) is provided with a power interface and a data interface, and an antenna connected to the wireless communication unit is installed. The interface is connected to the fee control meter, and the front of the housing (1) is provided with a running status display panel (3); wherein, The data acquisition unit is used to collect the cost and electricity data of at least one cost control meter, and send the collected data to the CPU main control unit; The CPU main control unit processes the data collected by the data acquisition unit, converts it into cost and power information, and notifies the end user through the wireless communication unit when the remaining amount of the meter or the remaining power is insufficient; The storage unit includes a Flash data storage unit and an EEPROM parameter storage unit. The Flash data storage unit is used to store the historical data of the electric energy meter, and the EEPROM parameter storage unit is used to store the parameters of the electric energy meter. 2. according to claim 1, the device for notifying payment of bills by short message of residential fee control meter is characterized in that, said data acquisition unit adopts a polar RS-485 acquisition unit for collecting the data of four electric energy meters; Data interface includes RS-485 positive interface and RS-485 negative interface. 3. the device for the short message notification payment of the residential fee control meter according to claim 1, characterized in that, the CPU main control unit is connected with an infrared maintenance system for querying and setting communication parameters, master station number and user number The unit, the infrared maintenance unit and the wireless communication unit all interact with the CPU main control unit through the serial bus. 4. The device according to claim 3 for notifying the fee payment of the residential fee control meter short message, wherein the infrared maintenance unit includes a 38K infrared transmission modulation circuit and an infrared emission and reception unit, and the emission of the infrared emission and reception unit and the receiving end are arranged on the running state display panel (3). 5. The device according to claim 1 for notifying the fee payment of the resident fee control meter short message, wherein the Flash data storage unit interacts with the CPU master control unit through the SPI bus, and the EEPROM parameter storage unit communicates with the CPU master control unit through the I ² C The bus interacts with the CPU master control unit. 6. The device according to claim 1, wherein the short message notification payment device for the residential fee control meter is characterized in that, the CPU main control unit is connected through an I/O interface for when the CPU main control unit is down due to abnormality Watchdog reset unit for forced reset; both the CPU main control unit and the wireless communication unit are used to discharge the CPU main control unit and the wireless communication unit when the AC-220V power supply is cut off, so that the CPU main control unit stores data, The wireless communication unit completes the farad capacitor charging and discharging unit for data transmission. 7. according to any one of claim 1-6, the device for notifying payment of residents' fee control meter short message, is characterized in that, the wireless communication unit adopts a GPRS network processing unit, and the antenna is a GPRS antenna (6), and the housing The bottom of the body (1) is also provided with a SIM card slot (8); the CPU main control unit adopts a 32-bit high-speed processor whose model is STM32F103. 8. The device for notification payment of residents' fee control meter according to claim 1, characterized in that, the housing (1) is divided into two parts that are fastened up and down, and are fixed by at least four bolts (7) . 9. According to claim 1 or 8, the device for notifying payment of residents' fee control meter by short message is characterized in that, the upper end of the back of the housing (1) is provided with a hook (2) for hanging the whole device, and through the hook (2) Install the whole device in the meter box. 10. The device according to claim 1 or 8, characterized in that, the middle part of the housing (1) is relatively provided with an upper card slot (4) and a lower card slot (5). ), the upper draw-in groove (4) and the lower draw-in groove (5) are clamped in the guide rail (9) of the meter case, and the whole device is installed in the meter case.