Internet of Things ammeter remote communication device and intelligent ammeter

Abstract

The utility model discloses an Internet of Things ammeter remote communication device and an intelligent ammeter. The device comprises a central processor, and an NB communication module and a positioning module which are respectively connected with the central processor. Wherein the NB communication module is configured to be in communication connection with an energy management system through an NB-loT network; the positioning module comprises a preset antenna for searching a satellite signal and is used for generating electric meter position information based on the satellite signal; the central processing unit is used for reading electric meter data of an electric meter to be collected and transmitting the electric meter data to an energy management system through the NB communication module, and the central processing unit is also used for reading the electric meter position information generated by the positioning module and transmitting the electric meter position information to the energy management system through the NB communication module. According to the utility model, low-power-consumption remote reading is realized, and the position of the electricity meter can be quickly positioned to facilitate later maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of smart electric meters, and specifically relates to an Internet of Things electric meter remote communication device and a smart electric meter. Background Art

[0002] Narrow Band Internet of Things (NB-IoT) consumes only about 180kHz of bandwidth and can be directly deployed on GSM networks, UMTS networks or LTE networks. It supports cellular data connections of low-power devices in wide area networks and has the characteristics of wide coverage, multiple connections, low cost, low power consumption and excellent architecture.

[0003] With the rapid development of intelligent networks, energy management systems have initially realized remote reading of meter data. With the application of NB-IoT, it has become an inevitable trend to upgrade the meter communication module to support NB-IoT network, which is conducive to improving the stability of remote reading and reducing costs.

[0004] However, in the prior art, network upgrades usually require changes to the entire meter, which is time-consuming, labor-intensive and costly. In addition, after remote reading, since the meters are scattered and far away, it is difficult for maintenance personnel to quickly locate and solve the problem, and it is difficult to maintain faulty meters. Summary of the invention

[0005] The utility model aims to provide an Internet of Things (IoT) electric meter remote communication device and a smart electric meter, which are used to solve the problems in the prior art of high NB-IoT Internet of Things upgrade cost and difficulty in rapid positioning of remote reading after the upgrade.

[0006] In a first aspect, the present application provides an Internet of Things electric meter remote communication device, comprising:

[0007] A central processing unit and a NB communication module and a positioning module respectively connected to the central processing unit;

[0008] Wherein, the NB communication module is configured to communicate with the energy management system through the NB-loT network;

[0009] The positioning module includes a preset antenna for searching satellite signals, and the positioning module is used to generate the location information of the electric meter based on the satellite signals;

[0010] The central processor is used to read the meter data of the meter to be collected, and transmit the meter data to the energy management system through the NB communication module. The central processor is also used to read the meter location information generated by the positioning module, and transmit the meter location information to the energy management system through the NB communication module.

[0011] In an embodiment of the present invention, the preset antenna is an external antenna connected to the SMA interface of the positioning module.

[0012] In one embodiment of the present invention, the positioning module further includes a built-in antenna, and the central processing unit is further configured to control the built-in antenna to be turned off when the external antenna is turned on, and to control the built-in antenna to be turned on when the external antenna is turned off.

[0013] In one embodiment of the utility model, the preset antenna is a built-in antenna, the Internet of Things electric meter remote communication device also includes an external antenna connected to the SMA interface of the positioning module, and the central processing unit is also configured to control the built-in antenna to be turned off when the external antenna is turned on, and to control the built-in antenna to be turned on when the external antenna is disconnected.

[0014] In one embodiment of the present utility model, the central processor is connected to the electric meter to be collected via a Uart communication bus, and the Uart communication bus is connected to the electric meter to be collected via a detachable structure.

[0015] In one embodiment of the present invention, the NB communication module includes a NB-loT unit and a SIM card, and the SIM card is installed on a card holder of the NB-loT unit.

[0016] In one embodiment of the present invention, the model of the NB-loT unit is BC32.

[0017] In one embodiment of the utility model, a DC converter is further included. The DC converter is connected to the central processing unit, and the DC converter is also connected to the electric meter to be collected through a detachable structure.

[0018] In an embodiment of the present invention, the detachable structure is a pin-and-pin-female matching structure.

[0019] In a second aspect, the utility model also provides a smart electric meter, comprising an electric meter body and an Internet of Things electric meter remote communication device connected to the electric meter body, wherein the Internet of Things electric meter remote communication device is the above-mentioned Internet of Things electric meter remote communication device.

[0020] Compared with the prior art, the Internet of Things electric meter remote communication device and smart electric meter proposed by the utility model have the following beneficial effects:

[0021] (1) By connecting the IoT meter remote communication device to the meter to be collected, the cost of upgrading the meter to NB-IoT is reduced, and low-power remote reading is achieved;

[0022] (2) The device is equipped with a positioning module so that maintenance personnel can quickly locate the location and go there to carry out work when problems arise during remote reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 Shown is a schematic diagram of the structure of the Internet of Things electric meter remote communication device according to an embodiment of the utility model;

[0025] Figure 2 Shown is a schematic diagram of the structure of the smart meter according to an embodiment of the utility model;

[0026] Figure 3 Shown is a schematic diagram of the positioning process of the smart meter according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0027] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that as long as there is no conflict, the various embodiments of the present invention and the various features in the embodiments can be combined with each other, and the technical solutions formed are all within the protection scope of the present invention.

[0028] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the utility model provides an Internet of Things electric meter remote communication device.

[0029] Figure 1 The structure diagram of the IoT electric meter remote communication device described in this embodiment is shown as follows: Figure 1 As shown, the electric meter reactive light control device provided by the embodiment of the utility model includes: a central processing unit and a NB communication module and a positioning module respectively connected to the central processing unit.

[0030] The NB communication module is configured to communicate with the energy management system through the NB-loT network. Optionally, the NB communication module includes an NB-loT unit and a SIM card, and the SIM card is installed on the card holder of the NB-loT unit. Preferably, the model of the NB-loT unit is BC32, and other models of NB-loT units can be selected according to actual needs. Based on the NB-loT network, low-power remote reading of meter data can be achieved.

[0031] The positioning module includes a preset antenna for searching satellite signals. The positioning module is used to generate the meter location information (i.e. GPS data) based on the satellite signals. Since the IoT meter remote communication device is connected to the meter to be collected, the location information obtained by the positioning module is the location information of the meter to be collected. When the maintenance personnel detect that there is a problem with the remote reading data, they can quickly locate the meter location based on the meter location information and start work.

[0032] The central processor is used to read the meter data of the meter to be collected, and transmit the meter data to the energy management system through the NB communication module. The central processor is also used to read the meter location information generated by the positioning module, and transmit the meter location information to the energy management system through the NB communication module. Specifically, the meter data includes electricity information, instantaneous current, instantaneous voltage and meter information. The energy management system includes a front-end that receives meter data and a preset server that receives meter location information. After receiving the above data, maintenance personnel can realize remote reading of the meter data to be collected in the energy management system and go to the specific location of the meter to be collected to perform maintenance work. According to actual needs, the central processor can be configured to send meter data and meter location information to the energy management system or other systems, devices, terminals or servers.

[0033] Optionally, the central processing unit is further configured to obtain multiple target server address information to be sent to the meter data and meter location information from the meter to be collected. The meter data and meter location information can be sent to different target server addresses respectively. At this time, the owner of the meter to be collected can set the first target server address information or the second target server address information through the meter host computer, and the IoT meter remote communication device can send information to different servers according to the different connected meters to be collected to meet the personalized needs of customers.

[0034] Optionally, the preset antenna is an external antenna, an SMA interface is provided on the positioning module, and the external antenna is connected to the SMA interface. Furthermore, the positioning module also includes a built-in antenna, and the built-in antenna serves as a backup antenna. The central processing unit is also configured to control the built-in antenna to turn off when the external antenna is turned on, and to control the built-in antenna to turn on when the external antenna is disconnected. Usually, when both the built-in antenna and the external antenna are provided, the signals of the two will interfere with each other and affect the effect, so the source of satellite signals can only be one of the built-in antenna and the external antenna. Therefore, when the positioning module's own antenna is an external antenna, the source of satellite signals is the external antenna, and the role of the built-in antenna is to serve as a backup antenna to meet the needs when the external antenna fails.

[0035] Optionally, the preset antenna is a built-in antenna, and the IoT electric meter remote communication device also includes an external antenna connected to the SMA interface of the positioning module. The central processor is also configured to control the built-in antenna to turn off when the external antenna is turned on, and to control the built-in antenna to turn on when the external antenna is disconnected. Usually, when both the built-in antenna and the external antenna are provided, the signals of the two will interfere with each other and affect the effect, so the source of satellite signal acquisition can only be one of the built-in antenna and the external antenna. When the positioning module's own antenna is a built-in antenna, the built-in antenna is the source of satellite signal acquisition under conditions of good signal environment. However, if the electric meter to be collected is located in an environment with poor GPS signal quality such as mountains or severe weather conditions, the external antenna has an increased signal receiving area and higher anti-interference ability. Switching to the external antenna can ensure the normal operation of the positioning function.

[0036] Preferably, the central processor is provided with a differential signal detection program of the prior art to control the internal antenna to be turned off when the external antenna is turned on and to control the internal antenna to be turned on when the external antenna is turned off.

[0037] Optionally, the central processor is connected to the meter to be collected via a Uart communication bus, and the Uart communication bus is connected to the meter to be collected via a detachable structure. According to actual needs, the communication bus can also be set to other communication buses besides Uart, such as RS232 communication bus or RS485 communication bus.

[0038] Optionally, the central processor is also provided with a standard deviation algorithm program in the prior art. The standard deviation algorithm program calculates the standard deviation of the position data at multiple time points, identifies and excludes abnormal values, thereby improving the accuracy and stability of the position information.

[0039] Optionally, the meter data also includes meter record events, and the central processor is further provided with a position threshold judgment unit configured to send the meter record event to the front-end processor in the energy management system when the meter position in the meter position information moves more than a preset distance.

[0040] Optionally, a DC converter is also included, which is connected to the central processor, and the DC converter is also connected to the electric meter to be collected through a detachable structure. Through the DC converter, the electric meter to be collected can be used to power the IoT electric meter remote communication device. For example, the voltage output by the electric meter to be collected is DC 12V, which is converted to DC 3.8V or 3.3V through the DC converter to power the IoT electric meter remote communication device. The actual output voltage of the electric meter can be converted into voltages of other values ​​according to demand to meet the input voltage requirements of the IoT electric meter remote communication device.

[0041] Optionally, the detachable structure is a pin-and-mother matching structure. For example, a pin is set on the IoT meter remote communication device, and the pin is inserted into the corresponding mother of the meter to be collected, so that the IoT meter remote communication device can be installed. According to actual needs, other detachable structures such as latches, threads and snap-fits can be selected. Through the detachable structure, the IoT meter remote communication device can be easily installed and replaced to meet the upgrade needs of the meter.

[0042] The IoT meter remote communication device of this embodiment is connected to the meter to be collected, which can reduce the cost of upgrading the meter to NB-IoT IoT and realize low-power remote reading. At the same time, a positioning module is set in the device, so that maintenance personnel can quickly locate the location when remote reading encounters problems and go to carry out work.

[0043] In order to solve the above technical problems existing in the prior art, the utility model also provides a smart electric meter.

[0044] Figure 2 The diagram shows the structure of the smart meter according to the embodiment of the present utility model. Figure 2 As shown, it includes an electric meter body and an Internet of Things electric meter remote communication device connected to the electric meter body, and the Internet of Things electric meter remote communication device is the above-mentioned Internet of Things electric meter remote communication device.

[0045] Figure 3 The figure shows a schematic diagram of the positioning process of the smart meter according to the embodiment of the present utility model, referring to Figure 3 As shown, through the IoT electric meter remote communication device, the electric meter body can realize remote reading and rapid positioning. In the initial state, wait for the IoT electric meter remote communication device to be powered on, and wait for the received satellite signal to stabilize before the positioning module generates GPS data according to the preset period. The standard deviation algorithm program in the central processing unit will calculate the standard deviation of the GPS data, identify and exclude abnormal values, and further, if the GPS data is valid data, the displacement is judged by the above-mentioned position threshold judgment unit. If the GPS data is greater than the preset distance, the electric meter record event is sent to the front-end in the energy management system. Preferably, the preset distance is 4m. According to actual conditions, the preset distance can be set to other reasonable values.

[0046] The smart meter of this embodiment effectively reduces the cost of upgrading the meter to NB-IoT by connecting the meter body to the IoT meter remote communication device, and realizes low-power remote reading. At the same time, a positioning module is set in the device, so that maintenance personnel can quickly locate the location when remote reading encounters problems and go to carry out work.

[0047] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. An Internet of Things electric meter remote communication device, characterized in that: include: A central processing unit and a NB communication module and a positioning module respectively connected to the central processing unit; Wherein, the NB communication module is configured to communicate with the energy management system through the NB-loT network; The positioning module includes a preset antenna for searching satellite signals, and the positioning module is used to generate the location information of the electric meter based on the satellite signals; The central processor is used to read the meter data of the meter to be collected, and transmit the meter data to the energy management system through the NB communication module. The central processor is also used to read the meter location information generated by the positioning module, and transmit the meter location information to the energy management system through the NB communication module.

2. The device according to claim 1, characterized in that The preset antenna is an external antenna connected to the SMA interface of the positioning module.

3. The device according to claim 2, characterized in that The positioning module also includes a built-in antenna, and the central processor is further configured to control the built-in antenna to be turned off when the external antenna is turned on, and to control the built-in antenna to be turned on when the external antenna is turned off.

4. The device according to claim 1, characterized in that The preset antenna is a built-in antenna, and the Internet of Things electric meter remote communication device also includes an external antenna connected to the SMA interface of the positioning module. The central processor is also configured to control the built-in antenna to be turned off when the external antenna is turned on, and to control the built-in antenna to be turned on when the external antenna is disconnected.

5. The device according to claim 1, characterized in that The central processor is connected to the electric meter to be collected via a Uart communication bus, and the Uart communication bus is connected to the electric meter to be collected via a detachable structure.

6. The device according to claim 1, characterized in that The NB communication module includes an NB-loT unit and a SIM card, and the SIM card is installed on the card holder of the NB-loT unit.

7. The device according to claim 6, characterized in that The model of the NB-loT unit is BC32.

8. The device according to claim 1, characterized in that It also includes a DC converter, which is connected to the central processor and is also connected to the electric meter to be collected through a detachable structure.

9. The device according to claim 5 or 8, characterized in that The detachable structure is a pin-and-pin-female matching structure.

10. A smart electric meter, characterized in that: It comprises an electric meter body and an Internet of Things electric meter remote communication device connected to the electric meter body, and the Internet of Things electric meter remote communication device is the Internet of Things electric meter remote communication device as claimed in any one of claims 1 to 9.

Images