CN201657322U - Double-channel disaster warning information receiving system - Google Patents

Abstract

The utility model provides a double-channel disaster warning information receiving system, which comprises a phone information preprocessing module, a DAB receiver information pre-processing module, an adapter, a mobile phone and a DAB receiver, wherein the receiving method of warming information comprises two modes which are satellite DAB receiving and GPRS short message receiving, the double-channel disaster warning information receiving system receives through mobile phone GPRS short messages in urban areas, automatically distinguish warming regions through using a mobile communication network according to location information of address regions, thereby achieving selection of a mobile phone terminal to warming information, and accurately receiving in real time. A DAB receiving end of the double-channel disaster warning information receiving system automatically distinguishes address codes of warming regions according to the region parameter information of the Beidou satellite in rural areas, thereby achieving warming information receiving of remote areas. The double-channel disaster warning information receiving system can guarantee to accurately receive warming information of all levels, all kinds and all departments in countrywide in real time in the maximal degree, and guarantees the safety of life property of broad masses of the people.

Description

A Dual Channel Disaster Early Warning Information Receiving System

technical field

The utility model belongs to the field of real-time data reception, and is especially aimed at the real-time reception of meteorological warning information.

Background technique

my country is one of the countries seriously affected by natural disasters in the world. Disasters such as typhoon, heavy rain (snow), lightning, drought, strong wind, hail, heavy fog, haze, sandstorm, high temperature heat wave, low temperature freeze damage occur from time to time, and there are many types of disasters. , wide distribution, high frequency of occurrence, and heavy losses. For most disasters, more accurate forecast information with varying timeliness can be obtained through scientific and technological means. Traditional meteorological information is mainly released through TV, newspapers, radio, SMS, Internet and other channels. These release methods require a media transfer process, and there will be a certain time delay. The public must also receive information through these media channels. Its arrival rate will be lost to a certain extent, thus affecting the effectiveness of meteorological information release. Therefore, the traditional method of issuing weather warnings cannot respond to sudden meteorological disasters in a timely manner.

Contents of the invention

Purpose of the invention:

In order to solve the above technical problems, the utility model provides a dual-channel disaster early warning information receiving system.

Technical solutions:

The utility model adopts the following technical solutions for realizing the above-mentioned purpose of the invention:

A dual-channel disaster early warning information receiving system, including a mobile phone information preprocessing module, a DAB receiver information preprocessing module, an adapter, a mobile phone, and a DAB receiver, wherein the mobile phone information preprocessing module and the DAB receiver information preprocessing module are respectively connected to the adapter The adapter is connected with the mobile phone and the DAB receiver respectively.

Further, the dual-channel disaster warning information receiving system of the present invention also includes a display connected to the DAB receiver.

Further, the mobile phone information preprocessing module of the dual-channel disaster early warning information receiving system of the present utility model includes a mobile phone information decoding module, a first channel processing module and a first storage unit module, wherein the mobile phone information decoding module is connected with the first channel processing module respectively It is connected with the first storage unit module, and the first storage unit module is connected with the first channel processing module.

Further, the DAB receiver information preprocessing module of the dual-channel disaster early warning information receiving system of the present invention includes a DAB information decoding module, a second channel processing module and a second storage unit module, wherein the DAB information decoding module is connected with the second channel respectively The processing module is connected to the second storage unit module, and the second storage unit module is connected to the second channel processing module.

Beneficial effect:

The utility model can ensure the real-time performance and accuracy of the early warning information reception in the maximum range through the dual-channel early warning information reception, and has a large coverage.

The utility model guarantees the real-time accuracy of early warning information reception to the greatest extent through satellite DAB reception and GPRS reception; urban areas adopt GPRS reception, and use the characteristics of wide coverage of satellite communication in rural areas and remote areas in the west where the signal is not good. Realize the real-time and accurate reception of early warning information. At the same time, two ways of dual-channel simultaneous reception are adopted for early warning information with a relatively high warning level, or a double insurance method is adopted to ensure real-time reception of early warning information in the case of a mobile communication network failure. Moreover, a feedback control unit is constructed at the DAB receiving terminal to realize real-time and accurate reception of early warning information.

The utility model has strong portability, low power consumption and small size, and can guarantee the safety of people's life and property to the greatest extent.

Description of drawings

Fig. 1 is a system structure diagram of the utility model.

Fig. 2 is a schematic diagram of the working method of the present utility model.

Detailed ways

Below in conjunction with accompanying drawing, technical scheme of the present utility model is described in detail:

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

As shown in Figure 1, the dual-channel disaster early warning information receiving system of the present utility model includes a mobile phone information preprocessing module, a DAB receiver information preprocessing module, an adapter, a mobile phone, and a DAB receiver, wherein the mobile phone information preprocessing module, the DAB receiving The mobile phone information preprocessing module is respectively connected with the adapter, and the adapter is respectively connected with the mobile phone and the DAB receiver. Also included is a display connected to the DAB receiver.

Wherein the mobile phone information preprocessing module includes a mobile phone information decoding module, a first channel processing module and a first storage unit module, wherein the mobile phone information decoding module is connected with the first channel processing module and the first storage unit module respectively, and the first storage unit module is connected with the first storage unit module The first channel processing module is connected. The DAB receiver information preprocessing module includes a DAB information decoding module, a second channel processing module and a second storage unit module, wherein the DAB information decoding module is connected with the second channel processing module and the second storage unit module respectively, and the second storage unit module Connect with the second channel processing module.

As shown in Figure 2, the dual-channel early warning information receiving method, the dual-channel disaster early warning information receiving system can realize two receiving methods of GPRS and satellite DAB to receive early warning information. The GPRS channel receives the early warning information through the early warning information publishing platform, publishes the early warning information to the mobile communication network, and selectively receives the information through the mobile phone information preprocessing module, and transmits the received information to the mobile phone display terminal through the adapter; the satellite DAB channel first sends the disaster early warning The information is released through the Beidou satellite through the release platform, and then the released early warning information is selectively received through the DAB receiver information preprocessing module, and finally, the early warning information that needs to be received is transmitted to the DAB receiving terminal through the adapter.

The adapter of the utility model is provided with a dual-channel switch: a GPRS channel receiving switch and a satellite DAB channel receiving switch. The utility model has three kinds of disaster information dissemination modes, which are respectively: (1) GPRS mobile phone channel dissemination mode; (2) satellite DAB channel dissemination mode; (3) dual channel dissemination mode;

1. When the GPRS mobile phone channel publishing method is selected, the GPRS channel receiving switch is turned on, the satellite DAB channel receiving switch is turned off, and the adapter transmits the released disaster warning information to the mobile phone user terminal;

2. When the satellite DAB channel publishing method is selected, the satellite DAB channel receiving switch is turned on, the GPRS channel receiving switch is turned off, and the adapter transmits the issued disaster warning information to the DAB receiving terminal;

3. When the dual-channel release method is selected, the GPRS channel receiving switch and the satellite DAB channel receiving switch are turned on at the same time, and the adapter transmits the released disaster warning information to the mobile phone user terminal and the DAB receiver respectively.

GPRS channel reception:

First, the early warning information that needs to be released is transmitted to the mobile communication network through the early warning information publishing platforms of various departments at all levels. The specific implementation method is as follows: the address information of the area where the disaster may occur (such as Nanjing City, Jiangsu Province) is loaded into the corresponding data segment in the disaster early warning information data frame, and transmitted to the mobile communication network through the early warning information publishing platform to realize the transmission of early warning information.

The early warning information issued by the GPRS channel is mainly composed of the following three parts:

1. The address information of the area where the disaster may occur;

2. The text of the warning message;

3. Parameter information of early warning information release unit, release department, release time and early warning level.

Then, the released early warning information is selectively received through the information preprocessing module.

The mobile phone information preprocessing module mainly realizes two functions:

1. Correctly unpack the content of the warning information and cache it;

2. Extract and compare the address code information after unpacking with the attribution information of the mobile terminal, so as to realize the selective reception of early warning information.

According to the above two functions, the workflow of the mobile phone information preprocessing module is as follows:

Step 1: Unpack the received early warning information, and the unpacked early warning information is divided into three sections (the address information section of the possible area, the information text section and the parameter information section) and stored in the RAM unit of the processor; at the same time, extract the The unpacked address code information segment;

Step 2: Receive the attribution information of the mobile phone user terminal provided by the mobile communication network, and store it in the RAM unit of the processor.

Step 3: Compare the extracted address code information after unpacking with the attribution information of the mobile phone user terminal by field, so as to realize the selective reception of the early warning information by the mobile phone terminal. If the unpacked address information is Nanjing City, Jiangsu Province, and the attribution information of the mobile phone user terminal is Nanjing City, Jiangsu Province, then compare them in order according to the order of the fields from large to small in the area range. The issued early warning information is transmitted to the mobile phone user terminal through the mobile communication network through the GPRS channel switch of the adapter, otherwise the information is discarded.

In this way, the received early warning information is selectively sent to the mobile phone user terminal through the adapter through the GPRS receiving module, and the user can obtain effective early warning information in real time in the form of short message reception.

Satellite DAB channel reception:

First, disaster warning information is released through the Beidou satellite. The DAB information release process is as follows:

Step 1: Divide the early warning information receiving area into n*m rectangular area sizes. According to the working scope of the early warning information, that is, the area covered by my country's land (from 73°40' east longitude to 135°2:30' east longitude, and from 53°33' north latitude to 3°52' north latitude) is divided into n*m equal-sized rectangles Areas, such as n=20, m=30, that is, each area spans 3 degrees and 6 minutes horizontally and 1 degree and 39 minutes vertically. For example, the address code of the area where Beijing is located is [14, 21];

Step 2, load the address code vector [n, m] of the area where the disaster may occur into the corresponding data segment in the disaster early warning information data frame, that is, the disaster early warning information containing the address code information will be released through the early warning information release platform, and through the Beidou The satellite issues early warning information (including address code vector).

The early warning information issued by the GPRS channel is mainly composed of the following three parts:

1. The address code vector of the area where the disaster may occur;

2. The text of the warning message;

3. Parameter information of early warning information release unit, release department, release time and early warning level.

Then, the issued early warning information is selectively received through the DAB receiver information preprocessing module.

The DAB receiver information preprocessing module mainly realizes the following two functions:

1. Correctly unpack the released warning information and receive the cache;

2. Compare the address code information in the unpacked early warning information with the address area information provided by the Beidou satellite to achieve selective reception of early warning information.

According to the above two major functions, the workflow of the DAB receiver information preprocessing module is as follows:

Step 1: Unpack the warning information, divide it into three sections, store it in the RAM unit of the processor, and extract the address code information section [n, m];

Step 2: Receive the positioning and timing information of the Beidou satellite system through the Beidou antenna, and extract the longitude and latitude data information;

Step 3: Preprocess the longitude and latitude information provided by the Beidou satellite. For example, according to n=20, m=30, subtract 73 degrees and 40 minutes from the received longitude data, divide it by 3 degrees and 6 minutes, and round the result to get Value x, and then subtract 3 degrees 52 minutes from the latitude data received by the DAB machine, divide it by 1 degree 39 minutes, and round the result to get the value y. Use the vector [x, y] to represent the obtained address code information, That is, the area address code of the DAB receiving terminal;

Step 4: The DAB receiving terminal automatically chooses to receive or discard the early warning information by comparing its own area address code [x, y] with the address code [n, m] loaded in the early warning information data frame. If the two are not the same, the early warning information is discarded; if the two are the same, the issued early warning information is transmitted to the DAB receiving terminal through the satellite DAB channel receiving switch of the adapter.

The DAB receiving terminal mainly includes: RF unit, A/D unit, baseband decoding unit, display unit, audio output unit and feedback control unit.

The RF unit mainly completes the function of tuning. This unit moves the radio frequency DAB signal received by the antenna from Band III (174~230MHz) or L Band (1452~1492MHz) to intermediate frequency (2.048MHz or 38.912MHz). According to the DAB agreement, the RF unit must have the ability to receive signals in these two frequency bands. Here, what RF chip adopts is MAX2170.

The A/D unit converts the baseband analog signal output by RF into a digital signal, so as to facilitate the realization of DAB digital decoding later; the chip used for A/D conversion is MAX1191 of MAXIM Company.

The baseband decoding unit is the core of DAB information reception. Its function is to complete DAB channel decoding, OFDM demodulation, DQPSK demodulation and other work. The output data of the A/D unit, through the baseband decoding unit, completes the corresponding decoding under the control of the processor.

Here, the DAB baseband chip selects ID200. ID200 is a small area, low power consumption DAB decoder (DAB baseband decoder and MPEG L2 audio decoder) chip that can be used in mobile and portable devices. The chip can decode DAB transmission frame at full speed of 1.5Mbps, including digital mixing, synchronization/tracking and demodulation. The baseband decoder decodes data or video information within a transmission frame. The decoded data/video information is connected to the SPI interface of the processor, and the register configuration information inside the baseband chip is read to realize the correct reception of the decoded data information. Since 1Mb SRAM is integrated on the baseband decoding chip, no additional SRAM storage unit is required.

The display unit adopts a 3.5-inch LCD color screen to realize real-time display of the early warning information received from the DAB information receiving module. Here, the warning information and various parameter information are displayed in real time through the backlight display function. Here, the display module is controlled by a processor.

The audio output unit realizes the audio broadcasting of the warning information received from the DAB information receiving module. Here, the audio decoding chip MAX9850 is selected. The control and data transmission of the processor to the MAX9850 is realized through the I2C interface.

The feedback control unit is a control feedback constructed to further ensure the real-time and accurate reception of early warning information. It mainly realizes two functions:

1. If the DAB receiving terminal receives warning information with a high warning level, and the user does not manually intervene to query the information, turn on the indicator light and buzzer switch, and feed back to the audio output unit through the switch to realize the text of the warning information. Continuous voice output to prompt the user. Further, if the continuous voice broadcast does not work, feed back to the adapter module and the information preprocessing module through the switch, then reissue the current warning information until the indicator light and the buzzer switch are turned off, in order to prepare for the normal reception of the DAB receiving terminal.

2. If the DAB receiving terminal receives the early warning information, and the user has manually intervened to query the information, the indicator light will no longer flash after checking the received various alarm information, and the buzzer will no longer alarm.

At the same time, in remote rural areas, early warning information can also be received through electronic large-screen display to expand the audience.

It can be seen that the utility model can receive early warning information issued by various departments at all levels and various departments accurately in real time through the dual-channel early warning information reception of satellite DAB and GPRS, and has a wide coverage and is portable. At the same time, the utility model proposes a method for selectively receiving early warning information (GPRS channel and satellite DAB channel), which can realize intelligent reception of early warning information by receiving terminals (mobile phones, DAB receiving terminals or electronic display screens).

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. dual-channel disaster early-warning information receiving system, it is characterized in that: comprise cellphone information pretreatment module, DAB receiver information pretreatment module, adapter, mobile phone, DAB receiver, wherein cellphone information pretreatment module, DAB receiver information pretreatment module are connected with adapter respectively, and adapter is connected with mobile phone, DAB receiver respectively.

2. dual-channel disaster early-warning information receiving system according to claim 1 is characterized in that: also comprise display, described display is connected with the DAB receiver.

3. dual-channel disaster early-warning information receiving system according to claim 1, it is characterized in that: described cellphone information pretreatment module comprises cellphone information decoder module, first passage processing module and the first memory cell module, wherein the cellphone information decoder module is connected with the first memory cell module with the first passage processing module respectively, and the first memory cell module is connected with the first passage processing module.

4. dual-channel disaster early-warning information receiving system according to claim 1, it is characterized in that: described DAB receiver information pretreatment module comprises DAB information decoding module, second channel processing module and the second memory cell module, wherein DAB information decoding module is connected with the second memory cell module with the second channel processing module respectively, and the second memory cell module is connected with the second channel processing module.

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