A portable ground monitoring and early warning system based on satellite positioning and transmission

Abstract

The present invention discloses a portable ground monitoring and early warning system based on satellite positioning and transmission, including multiple portable terminal devices, ground receiving devices and a host computer; the portable terminal device communicates with the ground receiving device via a satellite, and the ground receiving device is connected to the host computer; the portable terminal device includes a telescope and a signal acquisition transmitter, and the signal acquisition transmitter is fixed on the top of the telescope; the ground receiving device includes a shell, and a satellite communication module and a microcontroller are installed in the shell; the host computer is connected to the ground receiving device via a serial port, receives data from the ground receiving device, and completes data analysis, target information calculation and map display early warning through data analysis algorithm software. The present invention can effectively prevent low-altitude penetration flying objects, and the communication is not limited by distance, reducing the dependence on ground communication equipment, effectively expanding the range of the observation post forward, and providing sufficient early warning and deployment alert time for the command center.

Description

Technical Field

[0001] The invention relates to an early warning system, and in particular to a portable ground monitoring early warning system based on satellite positioning and transmission. Background Art

[0002] The ground monitoring and early warning system is mainly used to provide real-time and comprehensive air situation information. It is an important part of the field air defense combat command system and a reliable guarantee for giving full play to the combat effectiveness of the air defense system. Early air observation posts relied entirely on human eyes and ears to detect enemy aircraft, and several air observation lines formed an air reconnaissance alarm network. After the 1930s, radar appeared and was used in the world war. The air reconnaissance and early warning system gradually formed an air reconnaissance and early warning system with radar as the main body and combined with air observation posts. However, the oldest means of reconnaissance is still full of vitality. As an effective supplement to various sound, light, and electrical reconnaissance means, artificial observation posts are widely used in national air defense operations at home and abroad. By reasonably deploying artificial observation post troops, national air defense commanders can obtain artificial observation intelligence in designated areas or border areas in a timely manner to make up for the lack of intelligence obtained by mainstream detection means.

[0003] An air observation post is responsible for monitoring the enemy situation in the air and issuing reports. It usually uses vision and hearing, or with the help of observation equipment, to detect the enemy situation in the air and report the situation in a timely manner. Generally, an air observation network is composed of observation posts arranged in different directions and at different distances.

[0004] The traditional ground monitoring and early warning system's manual observation posts are simple and equipped with bulky backpack radio stations. The radio frequency reports the observed intelligence. In order to ensure the reliability of the connection of manual observation intelligence and effectively counter the enemy's interference with wireless communications, different observation groups will be assigned to use different frequency bands for communication. The battalion-level command post of the manual observation post unit is usually set up near the regional combat command center, or independently set up, keeping a certain distance from each manual observation post group. According to the number of subordinate manual observation post groups, corresponding communication means are equipped. In addition to the communication means with the superior command center, at least the same number of radio stations as the subordinate observation groups are required, and they work on the corresponding frequencies to receive the intelligence reported by each observation group. The content of the intelligence usually includes the type and model of the target, the heading and altitude of the target, the target speed, the number of targets, etc. Since the intelligence from the manual observation post is affected by the human factors of the observers, there are a lot of uncertainties in the various contents of the reported manual observation intelligence. How to remove false, duplicate and random errors from the large amount of collected intelligence from the manual observation post and integrate it into intelligence that commanders can directly use is an extremely complex task. At the same time, how to organically combine the intelligence from the manual observation post with other intelligence processing agencies and systematize the value of the intelligence from the manual observation post in a larger scope is also an urgent problem. Traditional manual observation intelligence is input into the system through various manual input seats. Due to the defects in the system design and the limitations of the system's hardware and software processing capabilities, the target position in the intelligence is the azimuth and elevation information with the intelligence observation post as the origin. There is basically no ability to integrate, and it is impossible to effectively participate in the intelligence integration of the superior command post. As an early manual observation post command system, each manual observation post is equipped with only a shortwave radio. The intelligence obtained from the manual observation post is transmitted to the battalion command post through voice, and is input into the command and control system through the corresponding manual input seat. There are the following more obvious defects: the observation intelligence officer visually reports, and the error is large;

[0005] Observational intelligence was transmitted via voice, which had poor confidentiality and low transmission efficiency and needed to be re-entered at the battalion command post;

[0006] The system lacks the ability to automatically synthesize and fully exploit observation intelligence;

[0007] Lack of ability to integrate with other mainstream intelligence;

[0008] In the rectification system, the information transmission time is long and the efficiency is low.

[0009] Searching and observing aerial targets using telescopes and other optical equipment is one of the main tasks of air observation posts in air defense operations. How to use telescopes to quickly and efficiently discover, identify and promptly transmit target information is an important skill to complete the intelligence of air observation posts.

[0010] At present, the telescope equipment used by air observation post scouts has the problem of low search efficiency. The main manifestations are:

[0011] 1. The method of searching for the target is unscientific, which makes it difficult to find the target during the search.

[0012] 2. When the target is discovered, the distance is close, the time available for observation is short, and the time available to provide information to the rear is short.

[0013] 3. Personnel have low continuous search capabilities and are unable to search for targets stably for a long time.

[0014] Existing optical equipment telescopes are mostly based on personal experience when searching for aerial targets, and either have a small viewing angle and high precision, or a large viewing angle and high speed but lack a more accurate search viewing angle.

[0015] 4. The human eye is the physiological basis of optical reconnaissance. The detection capability is divided into two aspects: one is the ability to detect targets, and the other is the ability to identify target types.

[0016] 5. Ordinary observation equipment mainly relies on ground communication equipment to transmit target information, and the communication distance is limited. This restriction seriously affects the range of the observation post and greatly shortens the warning and deployment alert time of the command and control center.

[0017] Due to the influence of human factors on the observers in the intelligence from manual observation posts, there is a lot of uncertainty in the various contents of the reported manual observation intelligence. For example, the format of an observation intelligence is usually stipulated to include many contents such as direction, altitude, speed, aircraft type, quantity, etc., but the intelligence actually received often only contains a few of them. Even the reported content has a large error due to the influence of human factors.

[0018] 1. The existing ground monitoring and early warning system lacks digital manual observation terminals and the ability to obtain highly automated observation information;

[0019] 2. Lack of digital communication system, observation and intelligence officers visually report, with large errors; unable to guarantee efficient and confidential transmission of observation intelligence;

[0020] 3. It lacks highly automated intelligence integration capabilities and requires manual information identification, entry, and uploading to the command system.

[0021] Therefore, developing a portable ground monitoring and early warning system based on satellite positioning and transmission has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0022] The present invention is to solve the above-mentioned shortcomings and provides a portable ground monitoring and early warning system based on satellite positioning and transmission.

[0023] The above-mentioned object of the present invention is achieved by the following technical scheme: a portable ground monitoring and early warning system based on satellite positioning and transmission, comprising a plurality of portable terminal devices, a ground receiving device and a host computer; the portable terminal device communicates with the ground receiving device via a satellite, and the ground receiving device is connected to the host computer;

[0024] The portable terminal device includes a telescope and a signal acquisition transmitter, which is fixed on the top of the telescope and has functions such as information acquisition, data encoding, control generation, and sky communication;

[0025] The ground receiving device includes a housing, in which a satellite communication module and a microcontroller are installed, and has functions such as point-to-point data reception, cloud information reception, decoding, location information collection, and data forwarding;

[0026] The host computer is connected to the ground receiving device through a serial port, receives data from the ground receiving device, and completes functions such as data analysis, target information calculation, and map display and early warning through data analysis algorithm software.

[0027] Furthermore, the telescope is a 10x telescope.

[0028] Furthermore, the signal acquisition transmitter is provided with an acquisition transmitter satellite signal transceiver antenna, an acquisition transmitter satellite positioning antenna, an acquisition transmitter status indicator light, a power indicator panel, an acquisition transmitter power switch, a charging jack, a button indicating the target type, a sending content clearing button, an information sending button and a high-performance processor.

[0029] Furthermore, the satellite communication module of the ground receiving device is provided with a receiving device satellite signal transceiver antenna and a receiving device satellite positioning antenna. The ground receiving device is also provided with a power indicator light, a receiving device status indicator light, an external power supply interface, a charging interface, a receiving device power switch and a data output interface. It has functions such as battery power supply and direct power supply, power indication, device status indication, satellite positioning and sky communication.

[0030] The ground receiving device is a data processing background, which is used to receive information such as position, attitude, orientation and target type sent by the portable terminal device from the cloud, and send it to the host computer through the serial port after preliminary analysis. The host computer software decodes and calculates the portable terminal device information.

[0031] Furthermore, the host computer is used for the ground receiving device to preliminarily demodulate the portable terminal device information, run analysis and display the target information. The analysis and display software can complete the analysis and detailed information display of the portable terminal device position, attitude and orientation information and target type, calculate the position of the target using the cross positioning algorithm, obtain the speed of the target and display it on the map. When the target position or speed reaches a threatening condition to the protected area, an alarm is issued. The host computer is placed in the control center and connected to the ground receiving device with a cable. The connection status of the host computer and the ground receiving device can be viewed in real time through the analysis and display software.

[0032] The core task of the portable terminal device is to collect the current position, attitude and target type information of the device, and send it to the ground receiving device through the Tiantong link. Except for the target type, which needs to be collected manually, the other two types of information are automatically collected by the device. The routine operations of the portable terminal device include power on, target type collection, information sending, power off, power query, charging, device information configuration and query.

[0033] Space-based communication and satellite positioning functions are sensitive to obstructions, so when using them, you need to pay attention to avoid obstructions to the signal. Make sure to adjust the direction of the Tiantong antenna without obstructions, and try to point it 45 degrees above the southwest horizon. Then press the power switch to turn on the power. At this time, the device status indicators are all red. Wait for all indicators to turn green, indicating that the device is in a usable state.

[0034] Working principle of the present invention:

[0035] After observing a suspicious target, if the target type matches the button definition type, press the corresponding button. If the target type is unknown, use button 4. After pressing the button, there will be a button prompt sound to prompt whether the button action is valid. When selecting the target type, make sure the button action is valid.

[0036] After the target selection is completed, click the send button to send the target information. When the button is pressed, similar to the target information collection button, there will be a key prompt sound to prompt that the key action is effective, and then the send indicator will enter the flashing state. When the send indicator stops flashing, the sending is completed. At this time, if the send indicator is red, it indicates that the sending failed, accompanied by 5 consecutive short beeps; if it is green, it indicates that the sending is successful, accompanied by 2 consecutive long beeps. The sending of information must be carried out one by one. Before the last information is sent, the information sending button will not trigger a new round of information sending. When sending information, pay attention to the observation posture of the telescope cannot change too much, otherwise it will cause a large deviation in the positioning result of the target.

[0037] When you have finished using the device, press the power button again to make sure the power indicator light turns off and the shutdown is complete.

[0038] The battery power indicator is located on the back. Press and hold the power query button, observe the indicator light, and calculate the battery power according to the number of lights on. The formula is as follows: battery power = number of lights on * 25%. When checking the power, if only one power indicator light is on, it means that the current battery power is low. It is recommended not to continue using the device and you need to shut down and charge it before using it again.

[0039] Use the matching 220V to 8.4V power adapter to charge the device. Try to avoid using other chargers to charge the device. It is strictly forbidden to use power adapters with other output voltage values ​​to charge the device. When the device is charging, the working circuit will be automatically disconnected and cannot be used normally. When checking the power level, the indicator light will be in full light. At this time, you can only judge whether the charging is completed by whether the indicator on the charger turns green. After charging is completed, you need to disconnect the charger as soon as possible to avoid affecting the battery life.

[0040] The core function of the ground receiving device is to receive the information sent by each telescope, and upload the received content to the host computer after preliminary analysis. The ground receiving device can be directly connected to an external 7.5V power supply, or it can be powered by a built-in battery when there is no power supply. The satellite signal transceiver antenna and satellite positioning antenna of the ground receiving device must be placed in an unobstructed place, and the satellite signal transceiver antenna is adjusted to point 45 degrees above the southwest horizon. The feeder connecting the ground receiving device and the antenna should avoid sharp bends. When using battery power, you need to pay attention to the battery power to avoid power loss.

[0041] The present invention can collect the current position, attitude and orientation information of a group of telescopes that observe the target, and use the cross-positioning algorithm to obtain the coordinate information of the observed target. This target capture method fills the radar warning blind spot and can effectively prevent low-altitude penetration flying objects. The system transmits telescope sensor information through the Tiantong satellite. Communication is not limited by distance, reducing dependence on ground communication equipment, effectively expanding the range of observation posts, and providing sufficient warning and deployment alert time for the command center.

[0042] The advantages of the present invention compared with the prior art are:

[0043] 1. The portable ground monitoring and early warning system based on satellite positioning and real-time transmission communication of the present invention can collect the current position, target status and other information of the portable terminal device (model: TN-DJZD-200) (referred to as "portable terminal"), and transmit it back to the ground receiving device (model: TN-DJJS-200) (referred to as "ground device") and the control center in real time by satellite communication, and then display the early warning after the background processing software completes the data processing. The system transmits the portable terminal sensor information through the Tiantong satellite, and the communication is not limited by distance, which reduces the dependence on ground communication equipment, effectively expands the range of the observation outpost, and provides sufficient early warning and deployment alert time for the command center. The system has high integration, is compact and portable, and supports users to carry it with them.

[0044] 2. The present invention uses digital and automated terminal equipment to directly equip manual observation sentinels, improve the timeliness and accuracy of observation intelligence collection, and increase the digitization and automation of observation intelligence. The use of efficient, confidential, and convenient digital communication equipment greatly improves the accuracy and reliability of transmitted intelligence, and improves the efficiency of transmission and distribution of observation intelligence. The upper computer ground monitoring and early warning system software is used to complete highly automated intelligence integration capabilities, remove false, duplicate, and random errors from a large amount of collected manual observation sentinel intelligence, and integrate it into intelligence that commanders can directly use; solve the problem of data fusion between manual observation intelligence and existing mainstream intelligence (radar). BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the present invention.

[0046] Figure 2 It is a flowchart of the startup of the portable terminal device in the present invention.

[0047] Figure 3 It is a flow chart of the operation of using the system of the present invention.

[0048] Figure 4 It is a schematic diagram of the three-dimensional structure of the portable terminal device in the present invention.

[0049] Figure 5 It is a front structural schematic diagram of the portable terminal device in the present invention.

[0050] Figure 6 It is a schematic diagram of the side structure of the portable terminal device in the present invention.

[0051] Figure 7 It is a schematic diagram of the rear three-dimensional structure of the ground receiving device in the present invention.

[0052] Figure 8 It is a front structural schematic diagram of the ground receiving device in the present invention. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0054] like Figure 1 As shown, a portable ground monitoring and early warning system based on satellite positioning and transmission includes a plurality of portable terminal devices 1, a ground receiving device 2 and a host computer 3; the portable terminal device 1 communicates with the ground receiving device 2 via a satellite 4, and the ground receiving device 2 is connected to the host computer 3;

[0055] like Figures 4 to 6 As shown, the portable terminal device 1 includes a telescope 101 and a signal acquisition transmitter 102. The telescope 101 is a 10x telescope 101. The signal acquisition transmitter 102 is fixed on the top of the telescope 101 and has functions such as information collection, data encoding, control generation, and sky communication.

[0056] like Figure 7 , Figure 8 As shown, the ground receiving device 2 includes a housing 201, in which a satellite communication module and a microcontroller are installed, and has functions such as point-to-point data reception, cloud information reception, decoding, location information collection, and data forwarding;

[0057] The host computer 3 is connected to the ground receiving device 2 via a serial port, receives data from the ground receiving device 2, and completes functions such as data analysis, target information calculation, and map display and early warning through data analysis algorithm software.

[0058] like Figures 4 to 6 As shown, the signal acquisition transmitter 102 is provided with an acquisition transmitter satellite signal transceiver antenna 103, an acquisition transmitter satellite positioning antenna 104, an acquisition transmitter status indicator light 105, a power indicator board 106, an acquisition transmitter power switch 107, a charging jack 108, a button indicating the target type 109, a sending content clearing button 110, an information sending button 111 and a high-performance processor.

[0059] The satellite signal transceiver antenna 103 of the transmitter is an omnidirectional Tiantong frequency band antenna. In order to ensure normal and stable communication with the Tiantong satellite, a satellite antenna of the corresponding frequency band must be used.

[0060] Telescope 101 is equipped with two satellite positioning antenna interfaces, one for Beidou signal reception and one for GPS signal reception. The current positioning system can be switched freely through commands. The configuration commands are as follows:

[0061]

[0062] The signal acquisition transmitter status indicator light 105 is located on the left side panel of the signal acquisition transmitter 102 and is composed of three dual-color LED lights.

[0063] The corresponding indication status of each indicator light is shown in the following table:

[0064]

[0065] The power indicator panel 106 is located in the center of the rear panel. When the button is pressed, the power indicator panel 106 will light up the LED indicator according to the current battery power. Each LED light represents 25% power. When all four lights are on, it means the battery power is 100%. When only the red indicator light is on, it means that the system power is too low and the system may not work properly and needs to be charged in time.

[0066] The power switch 107 of the acquisition transmitter is located on the right side of the front panel of the information acquisition transmitter. When the switch is pressed, the switch indicator lights up, indicating that the power is on. When the switch is pressed again, the switch indicator goes out, indicating that the power is disconnected. The device cannot be used normally in the charging state, and the power switch 107 of the acquisition transmitter is invalid.

[0067] The charging jack 108 is located on the right side of the rear panel. Considering the stability of the system, the power supply system of the device will be automatically cut off during charging, and the device cannot be used normally. The charging voltage is 8.4V (the voltage used by the device cannot be higher than this value). To ensure the safety of the device, do not use chargers with other voltage values ​​to charge the device.

[0068] There are 4 target type buttons on the left panel. The target types they represent are shown in the following table:

[0069]

[0070] When a key is pressed, it is effective only when a short beep is heard. Otherwise, you need to adjust the force and press the key again.

[0071] The clear and send buttons are located on the right panel. No. 2 is an information clear button, which is used to clear the previous target information selection. No. 1 is a send button, which is used to control the transmitter to send information such as the position, attitude and orientation of the telescope 101.

[0072] Same as the target type selection button, if it is a valid button action, there will be a short beep after pressing it. When the send button is pressed, the send indicator starts flashing, and all buttons are invalid during data transmission. When the send indicator stops flashing, if it is green, it means the transmission is successful, and there will be 2 consecutive long beeps; if it is red, it means the transmission fails, and there will be 5 consecutive short and rapid beeps.

[0073] like Figure 7 , Figure 8 As shown, the satellite communication module of the ground receiving device 2 is provided with a receiving device satellite signal transceiver antenna 201 and a receiving device satellite positioning antenna 208. The ground receiving device 2 is also provided with a power indicator light 202, a receiving device status indicator light 203, an external power supply interface 204, a charging interface 205, a receiving device power switch 206 and a data output interface 207, and has functions such as battery power supply and direct power supply, power indication, device status indication, satellite positioning and sky communication.

[0074] The ground receiving device 2 is a data processing background, which is used to receive information such as position, posture, orientation and target type sent by the portable terminal device 1 from the cloud, and send it to the host computer 3 through the serial port after preliminary analysis. The host computer 3 software decodes and calculates the information of the portable terminal device 1.

[0075] Receiving device status indicator 203: There are three dual-color receiving device status indicator lights 203 on the ground receiving device 2, located on the side of the device, which are used to indicate device initialization, positioning status, network access status, receiving status, etc. The indicator light and indication content comparison table is as follows:

[0076]

[0077] When the receiving device power switch 206 is pressed, the switch indicator light is on, indicating that the power is on. When the receiving device power switch 206 is pressed again, the switch indicator light is off, indicating that the power is off. In the charging state, the battery cannot be used to power the device. In the absence of an external power supply, the receiving device power switch 206 is invalid.

[0078] The charging interface 205 of the ground receiving device 2 is similar to the charging socket 108 of the portable terminal device 1 and will not be described in detail here.

[0079] Press the power inquiry button to check the current battery power. The battery power is calculated as follows: current power = number of lights on * 25%.

[0080] After receiving the information from the portable terminal device 1, the ground receiving device 2 sends the information to the host computer 3 through the RS422 interface, and the host computer 3 performs information analysis and positioning calculation.

[0081] The external power supply interface 204 enables the device to directly use the external power supply to power the device when it is directly powered externally, without the time limit of battery power supply. The design mode of coexistence of the external power supply interface and the battery on the ground receiving device 2 greatly improves the flexibility of device use. In terms of power selection, the device gives priority to using the external power supply. When there is no external power supply, the battery power supply link is connected and the battery power supply is started.

[0082] Furthermore, the host computer 3 is used to receive the information of the portable terminal device 1 initially demodulated by the ground receiving device 2, run analysis and display the target information. The analysis and display software can complete the analysis and detailed information display of the position, attitude and orientation information of the portable terminal device 1 and the target type, calculate the position of the target using the cross positioning algorithm, obtain the speed of the target and display it on the map. When the target position or speed reaches the threat condition to the protected area, an alarm is issued. The host computer 3 is placed in the control center and connected to the ground receiving device 2 by a cable. The connection status of the host computer 3 and the ground receiving device 2 can be viewed in real time through the analysis and display software.

[0083] The host computer 3 needs to use a PC with the following performance:

[0084]

[0085] The core task of the portable terminal device 1 is to collect the current position, attitude and target type information of the device, and send it to the ground receiving device 2 through the Tiantong link. Except for the target type, which needs to be collected manually, the other two types of information are automatically collected by the device. The conventional operations of the portable terminal device 1 include power on, target type collection, information sending, power off, power query, charging, device information configuration and query.

[0086] Space-based communication and satellite positioning functions are sensitive to obstructions, so when using them, you need to be careful to avoid obstructions to the signal. Make sure to adjust the direction of the Tiantong antenna without obstructions, and try to point it 45 degrees above the southwest horizon. Then press the power switch 107 to turn on the power. At this time, the device status indicator 105 is all red. Wait for all indicators to turn green, indicating that the device is in a usable state. The internal startup process of the device corresponding to the change of the status indicator 105 is as follows Figure 2 shown.

[0087] Working principle of the present invention:

[0088] After observing a suspicious target, if the target type matches the button definition type, press the corresponding button. If the target type is unknown, use button 4. After pressing the button, there will be a button prompt sound to prompt whether the button action is valid. When selecting the target type, make sure the button action is valid.

[0089] After the target selection is completed, click the send button to send the target information. When the button is pressed, similar to the target information collection button, there will be a key prompt sound to prompt that the key action is effective, and then the send indicator light will enter the flashing state. When the send indicator light stops flashing, the sending is completed. At this time, if the send indicator light is red, it indicates that the sending failed, accompanied by 5 consecutive short beeps; if it is green, it indicates that the sending is successful, accompanied by 2 consecutive long beeps. The sending of information must be carried out one by one. Before the last information is sent, the information sending button 111 will not trigger a new round of information sending. When sending information, it should be noted that the observation posture of the telescope 101 cannot change too much, otherwise it will cause a large deviation in the positioning result of the target.

[0090] When you have finished using the device, press the power button again to make sure the power indicator light turns off and the shutdown is complete.

[0091] The battery power indicator panel 106 is located on the back. Press and hold the power query button, observe the indicator lights, and calculate the battery power according to the number of lights on. The formula is as follows: battery power = number of lights on * 25%. When checking the power, if only one power indicator light 202 is on, it indicates that the current battery power is low. It is recommended not to continue using the device and it needs to be turned off and charged before use.

[0092] Use the matching 220V to 8.4V power adapter to charge the device. Try to avoid using other chargers to charge the device. It is strictly forbidden to use power adapters with other output voltage values ​​to charge the device. When the device is charging, the working circuit will be automatically disconnected and cannot be used normally. When checking the power level, the indicator light will be in full light. At this time, you can only judge whether the charging is completed by whether the indicator on the charger turns green. After charging is completed, you need to disconnect the charger as soon as possible to avoid affecting the battery life.

[0093] The core function of the ground receiving device 2 is to receive the information sent by each telescope 101, and upload the received content to the host computer 3 after preliminary analysis. The ground receiving device 2 can be directly connected to an external 7.5V power supply, or it can be powered by a built-in battery when there is no power supply. The satellite signal transceiver antenna and satellite positioning antenna 104 of the ground receiving device 2 must be placed in an unobstructed place, and the satellite signal transceiver antenna is adjusted to point 45 degrees above the southwest horizon. The feeder connecting the ground receiving device 2 and the antenna should avoid sharp bends. When using battery power, you need to pay attention to the battery power to avoid power loss.

[0094] The operating steps used by the entire system, such as Figure 3 At the same time, it must be ensured that when the ground receiving device 2 is in use, the upper computer 3 display software is already running, and when the signal acquisition transmitter 102 sends information, the ground receiving device 2 is already in the network state.

[0095] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A portable ground monitoring and early warning system based on satellite positioning and transmission, characterized in that: It includes a plurality of portable terminal devices, a ground receiving device and a host computer; the portable terminal devices communicate with the ground receiving device via a satellite, and the ground receiving device is connected to the host computer; The portable terminal device includes a telescope and a signal acquisition transmitter, which is fixed on the top of the telescope and has the functions of information acquisition, data encoding, control generation, and sky communication; The ground receiving device includes a housing, in which a satellite communication module and a microcontroller are installed, and has the functions of point-to-point data reception, cloud information reception, decoding, location information collection, and data forwarding; The host computer is connected to the ground receiving device through a serial port, receives data from the ground receiving device, and completes the functions of data analysis, target information calculation and map display warning through data analysis algorithm software; After receiving the information from the portable terminal device, the ground receiving device sends the information to the host computer through the RS422 interface. The core function of the ground receiving device is to receive the information sent by each telescope and upload the received content to the host computer after preliminary analysis.

2. A portable ground monitoring and early warning system based on satellite positioning and transmission according to claim 1, characterized in that: The telescope is a 10x telescope.

3. The portable ground monitoring and early warning system based on satellite positioning and transmission according to claim 1 is characterized by: The signal acquisition transmitter is provided with an acquisition transmitter satellite signal transceiver antenna, an acquisition transmitter satellite positioning antenna, an acquisition transmitter status indicator light, a power indicator board, an acquisition transmitter power switch, a charging jack, a button indicating the target type, a sending content clearing button, an information sending button and a high-performance processor.

4. The portable ground monitoring and early warning system based on satellite positioning and transmission according to claim 1 is characterized by: The satellite communication module of the ground receiving device is provided with a receiving device satellite signal transceiver antenna and a receiving device positioning antenna. The ground receiving device is also provided with a power indicator light, a receiving device status indicator light, an external power supply interface, a charging interface, a receiving device power switch and a data output interface. It has the functions of battery power supply and direct power supply, power indication, device status indication, satellite positioning and Tiantong.

5. The portable ground monitoring and early warning system based on satellite positioning and transmission according to claim 1 is characterized by: The host computer is used for preliminary demodulation of portable terminal device information by ground receiving equipment, and runs analysis and displays target information; the analysis and display software can complete the analysis and detailed information display of the portable terminal device position, attitude and orientation information and target type, calculate the position of the target by using the cross positioning algorithm, obtain the speed of the target and display it on the map; an alarm is issued when the target position or speed reaches a threat condition to the protected area; the host computer is placed in the control center and connected to the ground receiving equipment with a cable, and the connection status of the host computer and the ground receiving equipment can be viewed in real time through the analysis and display software.

Images