CN216700026U

CN216700026U - Multifunctional wireless gateway and security alarm system based on same

Info

Publication number: CN216700026U
Application number: CN202123082152.5U
Authority: CN
Inventors: 魏君飞; 郝振宇; 林聪�; 陈现成; 王苗龙; 朱高喜; 陆小辉; 胡朝鹏
Original assignee: Hanwei Electronics Group Corp
Current assignee: Hanwei Electronics Group Corp
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-07
Anticipated expiration: 2031-12-09

Abstract

The utility model provides a multifunctional wireless gateway and a security alarm system based on the same, wherein the multifunctional wireless gateway comprises an external Flash module, a 433MHz wireless communication module, a 4G communication module, a linkage input and output module and a main control MCU (microprogrammed control unit); the external Flash module comprises two Flash storage units and is used for storing event records triggered by events, equipment registration information and an FOTA upgrading program; the 433MHz wireless communication module is used for wireless communication connection between the master control MCU and the alarm node terminal; the 4G communication module is used for communicating with the cloud server and the user mobile intelligent terminal so as to transmit the node information and the gateway information to the cloud server, receive information sent by the cloud server and send alarm information to the user intelligent terminal; and the linkage input and output module is used for wired communication connection between the master control MCU and the linkage node terminal.

Description

Multifunctional wireless gateway and security alarm system based on same

Technical Field

The utility model belongs to the technical field of smart homes, and particularly relates to a multifunctional wireless gateway and a security alarm system based on the same.

Background

With the increasing number of intelligent devices, more and more devices need to have networking capability and linkage capability. Wireless ad hoc networks are certainly the best choice for compatibility with some situations where there is no network coverage. The wireless ad hoc network is a portable communication mode, can quickly establish a set of decentralized network environment in the environment without any network, and does not depend on conventional infrastructures such as a machine room network and the like. Under the condition of visual or non-visual range, the ad hoc network system can simply carry out networking and transmit the voice, video and data of the front end.

433MHz is our national exempts from to apply for section transmission receiving frequency, can directly use, wireless penetration ability is stronger, transmission distance is more far away, can realize point-to-point, point-to-many intelligent network deployment, convenient maintenance, own agreement communication, data transmission transparency is little, privacy is strong, the consumption is lower simultaneously, can adopt the battery powered, frequency channel frequency spectrum interference is few, can improve the network and get wholeness ability, reduce the retransmission number of times in the transmission, in intelligent furniture, the aspect such as intelligence smoke detector is used extensively, low-power consumption, long distance communication gets the best choice. Under the condition, the intelligent gateway under the 433MHz frequency band is particularly important. The intelligent gateway can be connected with a plurality of devices to realize wireless ad hoc network data interactive transmission, and meanwhile, the intelligent gateway can also connect the device information to the cloud server and push the data to the intelligent terminal for reminding.

However, most of the existing gateway devices do not support a linkage mechanism in multiple forms, are not compatible with terminal device access in multiple communication forms, and do not have functions of upgrading peripheral devices. In order to solve the above problems, people are always seeking an ideal technical solution.

Disclosure of Invention

The utility model aims to provide a multifunctional wireless gateway and a security alarm system based on the same, aiming at the defects of the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a multifunctional wireless gateway in a first aspect, which comprises an external Flash module, a 433MHz wireless communication module, a 4G communication module, a linkage input and output module and a master control MCU (microprogrammed control unit); the external Flash module is connected with the main control MCU and comprises two Flash storage units, wherein the first Flash storage unit is used for storing event records and equipment registration information triggered by events, and the second Flash storage unit is used for storing an FOTA upgrading program; the 433MHz wireless communication module is connected with the master control MCU and used for wireless communication connection between the master control MCU and the alarm node terminal; the 4G communication module is connected with the main control MCU and is used for communicating with the cloud server and the user mobile intelligent terminal so as to transmit the node information and the gateway information to the cloud server, receive the information sent by the cloud server and send alarm information to the user intelligent terminal; and the linkage input and output module is connected with the main control MCU and used for wired communication connection between the main control MCU and the linkage node terminal.

Based on the above, the second flash memory unit divides the first memory area and the second memory area, and both store the APP information description table DATA and the BIN-DATA DATA.

Based on the above, the intelligent television set also comprises a voice broadcasting module, an LCD display module and a key operation module which are connected with the main control MCU; the voice broadcasting module is used for broadcasting gateway information and node information; the LCD display module is used for displaying node registration information, node information and gateway self function information; the key operation module is used for realizing the operation of the LCD display module menu.

Based on the above, the node information includes alarm information and trigger information for triggering corresponding actions of each node terminal.

Based on the above, the main control MCU selects an ideographic semiconductor STM32L496VET 6; the external Flash module selects two W25Q128 blocks; the 433MHz wireless communication module adopts a HW3000 communication module of silicon technology; the 4G communication module adopts a remote module EC 600S-CN; the linkage input and output module comprises two 485 bus interfaces, two CAN bus interfaces, two 232 bus interfaces, one TTL interface and eight I/O interfaces.

The utility model provides a security alarm system in a second aspect, which comprises the multifunctional wireless gateway, a linkage node terminal, an alarm node terminal, a cloud server and a user mobile intelligent terminal; the multifunctional wireless gateway is in wireless communication connection with the alarm node terminal through a 433MHz wireless communication module, in wired communication connection with the linkage node terminal, in communication connection with the cloud server and the user mobile intelligent terminal through a 4G communication module, and is used for upgrading firmware of the alarm node terminal, transmitting node information of the alarm node terminal and the linkage node terminal to the cloud server and the user mobile intelligent terminal, transmitting control instructions of the cloud server and the user mobile intelligent terminal to the alarm node terminal and the linkage node terminal, and performing linkage control on the alarm node terminal and the linkage node terminal.

Based on the above, the linkage node terminal includes a household gas meter with a valve control function and various control valves.

Based on the above, the alarm node terminal comprises a gas alarm node terminal, a CO alarm node terminal and a smoke detector alarm node terminal.

Compared with the prior art, the utility model has substantive characteristics and progress, and particularly comprises the following steps:

1) the multifunctional wireless gateway supports various wired linkage mechanisms through the arrangement of the linkage input and output module, and is compatible with the access of node terminal equipment in various wired communication forms;

2) the multifunctional wireless gateway can upgrade the firmware of the accessed node terminal supporting 433MHz wireless communication through the arrangement of the 433MHz wireless communication module.

Drawings

Fig. 1 is a schematic block diagram of a multifunctional wireless gateway of embodiment 1.

Fig. 2 is a memory area division diagram of a second flash memory unit in embodiment 1.

Fig. 3 is a flowchart of firmware upgrade in embodiment 1.

FIG. 4 is a pin type diagram of the I/O ganging module according to embodiment 1.

Fig. 5 is a block diagram of the security alarm system in embodiment 2.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments.

Example 1

As shown in fig. 1, this embodiment provides a multifunctional wireless gateway, which includes an external Flash module, a 433MHz wireless communication module, a 4G communication module, a linkage input/output module, a voice broadcast module, an LCD display module, a key operation module, and a main control MCU;

the external Flash module is connected with the main control MCU and comprises two Flash storage units, wherein the first Flash storage unit is used for storing event records and equipment registration information triggered by events, and the second Flash storage unit is used for storing an FOTA upgrading program; the 433MHz wireless communication module is connected with the main control MCU and used for communication connection between the main control MCU and the alarm node terminal when firmware is upgraded; the 4G communication module is connected with the main control MCU and is used for communicating with the cloud server and the user mobile intelligent terminal so as to transmit the node information and the gateway information to the cloud server, receive the information sent by the cloud server and send alarm information to the user intelligent terminal; the linkage input and output module is connected with the master control MCU and used for accessing each node terminal; the voice broadcasting module is connected with the main control MCU and is used for broadcasting gateway information and node information; the LCD display module is connected with the main control MCU and is used for displaying node registration information, node information and gateway self function information; the key operation module is connected with the main control MCU and used for realizing the operation of the menu of the LCD display module; the node information comprises alarm information and trigger information for triggering corresponding actions of each node terminal.

Specifically, the main control MCU selects an ideographic semiconductor STM32L496VET6, has strong function, rich resources and better robustness, and is provided with a flash of 512K and a RAM of 320K, so that enough space is reserved for expanding functions;

the voice broadcasting module is used for broadcasting gateway information and node information, and a WT5801M14 module is selected, so that the gateway information and trigger information can be broadcasted better and more intelligently, and a user is reminded of information such as alarming and network access;

the LCD display module adopts an OPTO1357GFW module of a CASIS, is a 300X 200 dot matrix display screen module and is used for displaying node registration information, node information and gateway self function information;

the key operation module is used for realizing the operation of the LCD display module menu and comprises four keys which are respectively click-up, click-down, click-confirmation and click-backspace; the operation of the Chinese menu on the LCD screen is realized by operating the four keys, the node terminal functions of equipment alarm silencing, equipment registration and the like are realized, and meanwhile, the relevant password information, the node alarm record information, the node information and the like of the gateway can be checked.

The external Flash module adopts two W25Q128 blocks, and a rich space provides guarantee for recording various events and parameters;

the first flash memory unit is used for storing event records and equipment registration information triggered by events, so that event tracing and checking are facilitated;

the second flash memory unit is used for storing an FOTA upgrading program so as to carry out FOTA upgrading. When the FOTA of the gateway is upgraded, firstly, the space of a second flash memory unit is divided into a Firmware A area and a Firmware B area, as shown in FIG. 2, APP information description table DATA and BIN-DATA DATA are stored, and the DATA are divided into APP-A, DATA-A, APP-B, DATA-B; after the power is powered on for the first time, because the FOTA upgrade is not carried out, the contents of the area A and the area B are consistent, after the FOTA upgrade is carried out, the newly upgraded DATA is replaced by APP-A, DATA-A, and after the program is successfully executed, the DATA of the area B is refreshed, namely APP-B = APP-A, DATA-B = DATA-A; and if the program execution fails, powering on again next time to send the datｃA of the areｃA B to the areｃA A, namely APP-A = APP-B, DATA-A = DATA-B, and executing the upgrading program again, thereby ensuring the smooth operation of the gateway program.

The 4G communication module adopts a remote module EC600S-CN, has stable performance, large data transmission quantity and full network communication, and is widely applied to the fields of automation, intelligent metering and the like. The gateway of the embodiment can set four alarm telephones by using the telephone calling function of the module, dials one for 2 times according to the set telephone logic sequence, and dials in sequence if no response exists; if the four alarm calls are not answered by people, the four alarm calls are dialed again at three-minute intervals, if the four alarm calls are answered by people, circulation is stopped, and a user is guaranteed to know alarm information to process.

433MHz wireless communication module adopts HW3000 communication module of silicon technology, and HW3000 has advantages such as stable performance, with low costs, the size is little, low-power consumption, high accuracy, and SPI pin through master control MCU can very conveniently drive. HW3000 communication modules are carried on the alarm terminal nodes and the gateway, so that information interaction can be realized, and meanwhile, the firmware of the alarm terminal nodes can be upgraded by the gateway by utilizing a 433MHz network;

the firmware upgrading process comprises the following steps: the cloud server informs the intelligent gateway to carry out single-node firmware upgrading or node firmware upgrading through the 4G network, the firmware data is sent to the gateway to be stored, when the nodes are reported by heartbeat, the gateway informs the alarm node terminal to carry out firmware upgrading, connection is kept, and upgrading can be finished by utilizing 433MHz wireless communication;

as shown in fig. 3, when FOTA of an alarm node terminal is upgraded, an upgrade program is stored in a Firmware C area and a Firmware D area of a second flash memory unit space, and APP information description table DATA and BIN-DATA for upgrading an alarm node terminal Firmware stored in the second flash memory unit C area are first transmitted to the alarm node terminal;

after the FOTA is upgraded, the alarm node terminal transmits the upgrade result back to the gateway, and after the upgrade program is successfully executed, the DATA in the D area are refreshed, namely APP-D = APP-C, DATA-D = DATA-C; if the upgrade program fails to execute, the gateway sends the DATA in the area D to the node, and meanwhile refreshes the DATA in the area C, namely APP-C = APP-D, DATA-C = DATA-D.

The linkage input and output module provides more convenience for accessing more wired linkage node terminals, and comprises two 485 bus interfaces, two CAN bus interfaces, two 232 bus interfaces, one TTL interface and eight I/O interfaces;

the RS-485 interface adopts the combination of a balanced driver and a differential receiver, so that the common-mode interference resistance is enhanced, namely the noise interference resistance is good; the data communication among all nodes of the network formed by the CAN bus has strong real-time performance, and a redundant structure is easy to form, so that the reliability and the flexibility of the system are improved; the 232 bus has simple structure and wide application; by utilizing the buses, the gateway can not only be linked with the node terminals with the same bus interfaces for response, but also receive alarm information or other information of the other node terminals, so that bidirectional linkage of the 433MHz wireless terminal, the intelligent gateway and the same wired bus node terminals is realized, and the contact among different node terminals is enhanced;

meanwhile, for other node terminals, such as a household gas meter with a valve control function, which generally does not have a bus structure, RELAY1 and RELAY2 of the I/O interface in fig. 5 can be used, the two paths are set as RELAY outputs, and the gas meter can perform valve opening and closing operations after receiving a RELAY signal; meanwhile, the gateway can receive relay input, is ALARM 1-ALARM 8 pins of an I/O interface in the figure 4, can receive relay signals of other node terminal equipment to perform response operation, and also provides guarantee for mutual information exchange between the terminals; the TTL interface provides serial port reservation for node terminal equipment in other modes, and the serial port can be used for information interaction when the equipment does not have the interaction mode.

Particularly, the gateway is further provided with a power management module which comprises a mains supply module and an internal lithium battery module, the mains supply module is connected with DC24V, the voltage is provided by an external switch power supply, after the mains supply is disconnected, the internal lithium battery continuously supplies power, and meanwhile, the mains supply is triggered to be powered off to alarm, so that the normal work of the gateway is guaranteed.

The multifunctional intelligent gateway provided by the embodiment has the advantages of strong functions, strong adaptability, strong expandability, capability of accessing 200 433MHz wireless communication nodes and realization of node information management, and provides interfaces for node terminal equipment for various types of communication.

Example 2

As shown in fig. 5, this embodiment provides a security alarm system, which includes the multifunctional wireless gateway, the linkage node terminal, the alarm node terminal, the cloud server, and the user mobile intelligent terminal described in embodiment 1;

the multifunctional wireless gateway is in communication connection with the alarm node terminal through a 433MHz wireless communication module, is in communication connection with the alarm node terminal and the linkage node terminal through a linkage input and output module, and is in communication connection with the cloud server and the user mobile intelligent terminal through a 4G communication module,

the method is used for upgrading the firmware of the alarm node terminal, transmitting the node information of the alarm node terminal and the linkage node terminal to the cloud server and the user mobile intelligent terminal, transmitting the control instruction of the cloud server and the user mobile intelligent terminal to the alarm node terminal and the linkage node terminal, and performing linkage control on the alarm node terminal and the linkage node terminal.

The communication flow of the security alarm system of the embodiment is as follows:

alarm node terminals such as a gas alarm node terminal, a CO alarm node terminal and a smoke alarm node terminal are firstly registered on a multifunctional wireless gateway to obtain an ID (identity) distributed by the gateway, and subsequent communication is carried out with the ID for identity recognition. After an event is triggered, information interaction is carried out with a gateway through 433MHz wireless communication, the gateway has edge computing capacity to acquire corresponding information, after responding to a node terminal, a linkage response is triggered to the linkage node terminal, the linkage node terminal is generally a gas meter, a valve and other equipment, and the linkage node terminal can trigger corresponding actions; meanwhile, the gateway transmits the equipment triggering information to the cloud server through 4G communication, the cloud server processes the data information and then displays the data information through the Internet of things platform, and the information is pushed to the intelligent terminal, the intelligent terminal is generally a mobile phone or a tablet personal computer, and meanwhile the intelligent terminal can also control the intelligent gateway and each node terminal.

Finally, it should be noted that the above examples are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. A multi-functional wireless gateway, comprising: the device comprises an external Flash module, a 433MHz wireless communication module, a 4G communication module, a linkage input and output module and a master control MCU;

the external Flash module is connected with the main control MCU and comprises two Flash storage units, wherein the first Flash storage unit is used for storing event records and equipment registration information triggered by events, and the second Flash storage unit is used for storing an FOTA upgrading program;

the 433MHz wireless communication module is connected with the master control MCU and used for wireless communication connection between the master control MCU and the alarm node terminal;

the 4G communication module is connected with the main control MCU and is used for communicating with the cloud server and the user mobile intelligent terminal so as to transmit the node information and the gateway information to the cloud server, receive the information sent by the cloud server and send alarm information to the user intelligent terminal;

and the linkage input and output module is connected with the main control MCU and used for wired communication connection between the main control MCU and the linkage node terminal.

2. The multi-functional wireless gateway of claim 1, wherein: the second flash memory unit is divided into a first memory area and a second memory area, and both store APP information description table DATA and BIN-DATA DATA.

3. The multi-functional wireless gateway of claim 1, wherein: the device also comprises a voice broadcasting module, an LCD display module and a key operation module which are connected with the main control MCU;

the voice broadcasting module is used for broadcasting gateway information and node information;

the LCD display module is used for displaying node registration information, node information and gateway self function information;

the key operation module is used for realizing the operation of the LCD display module menu.

4. The multi-functional wireless gateway of claim 3, wherein: the node information comprises alarm information and trigger information for triggering corresponding actions of each node terminal.

5. The multi-functional wireless gateway of claim 1, wherein: the main control MCU selects an ideographic semiconductor STM32L496VET 6; the external Flash module selects two W25Q128 blocks; the 433MHz wireless communication module adopts a HW3000 communication module of silicon technology; the 4G communication module adopts a remote module EC 600S-CN; the linkage input and output module comprises two 485 bus interfaces, two CAN bus interfaces, two 232 bus interfaces, one TTL interface and eight I/O interfaces.

6. The utility model provides a security alarm system which characterized in that: the system comprises the multifunctional wireless gateway, a linkage node terminal, an alarm node terminal, a cloud server and a user mobile intelligent terminal according to any one of claims 1 to 5;

the multifunctional wireless gateway is in wireless communication connection with the alarm node terminal through a 433MHz wireless communication module, in wired communication connection with the linkage node terminal through a linkage input and output module, and in communication connection with the cloud server and the user mobile intelligent terminal through a 4G communication module,

7. The security alarm system of claim 6, wherein: the linkage node terminal comprises a household gas meter with a valve control function and various control valves.

8. The security alarm system of claim 6, wherein: the alarm node terminal comprises a gas alarm node terminal, a CO alarm node terminal and a smoke sensing alarm node terminal.