CN114867000A - Emergency rescue information transmission method and device - Google Patents
Emergency rescue information transmission method and device Download PDFInfo
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- 238000005070 sampling Methods 0.000 claims description 8
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- H—ELECTRICITY
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides an emergency rescue information transmission method and device, wherein the method comprises the following steps: step 1, obtaining a first signal intensity and a second signal intensity of current equipment, wherein the first signal is a satellite signal, and the second signal is a mobile network signal; and 2, determining the position of the current equipment according to the first signal strength and the second signal strength, and sending the position to a server or/and establishing a communication channel for rescue information transmission. The vehicle-mounted emergency rescue system can establish communication connection with the server under various signal conditions, and the reliability of emergency rescue is improved.
Description
Technical Field
The invention relates to the technical field of vehicle networking, in particular to an emergency rescue information transmission method and device.
Background
ECALL is an emergency call system used after an accident occurs to an automobile, and can enable the automobile to automatically send distress information to a corresponding rescue organization for rescue when the accident occurs, particularly when personnel in the automobile cannot autonomously call for help, and the ECALL can also be manually activated through a key. The current ECALL only has the functions of uploading data and voice calls through a mobile data network, and also has the function of uploading pictures through a camera. However, if the vehicle is in a no-signal area or the signal area is very weak, the system cannot upload data in time or dial up voice calls, which wastes valuable rescue time.
According to the technical scheme, in order to overcome the defect that the existing ECALL terminal can only upload information or carry out video and voice call in the state of a mobile network, a Beidou navigation system is implanted into the ECALL system, and when no mobile network exists, the Beidou information uploading function is started to send accident signals (including position, time, vehicle characteristics and the like).
Disclosure of Invention
The invention provides an emergency rescue information transmission method and device, aiming at overcoming the defects in the prior art, realizing that a vehicle-mounted emergency rescue system can establish communication connection with a server under various signal conditions, and improving the reliability of emergency rescue.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides an emergency rescue information transmission method on the one hand, which comprises the following steps:
step 1, obtaining a first signal intensity and a second signal intensity of current equipment, wherein the first signal is a satellite signal, and the second signal is a mobile network signal;
and 2, determining the position of the current equipment according to the first signal strength and the second signal strength, and sending the position to a server or/and establishing a communication channel for rescue information transmission.
Specifically, the step 2 includes:
step 201, setting a trigger threshold value and a decision counter of a first signal;
step 202, judging whether the second signal strength is greater than a second preset signal strength threshold value, if so, judging whether the first signal strength is greater than a first preset signal strength threshold value, and entering the next step, otherwise, entering step 208;
step 203, determining the position of the current device according to a preset fusion rule, sending the position or/and establishing video connection through the second signal, and otherwise, entering the next step;
step 204, determining the position of the current device according to the second signal, and sending the position or/and establishing a video connection through the second signal;
step 205, monitoring the first signal strength, and initializing the decision counter when the first signal strength is equal to or greater than the trigger threshold;
step 206, continuously monitoring the first signal strength at a preset sampling rate within a preset time length, if at least 2 different first signal strengths received by next sampling are equal to or greater than a first preset signal strength threshold value, controlling the decision counter to accumulate in preset steps, otherwise, controlling the decision counter to reduce at a preset multiplying power, and returning to the step 204;
step 207, judging whether the judgment counter is larger than a judgment threshold value, if so, entering step 203, otherwise, returning to step 205;
and 208, judging whether the first signal strength is greater than a first preset signal strength threshold value, if so, determining the position of the current equipment according to the first signal, and sending the position or/and establishing video connection through the first signal, otherwise, prompting that the positioning fails.
Specifically, the preset fusion rule includes:
a, acquiring a first signal and a second signal;
b, acquiring a first initial position of the current equipment according to the first signal, and acquiring a second initial position of the current equipment according to the second signal;
step C, judging whether the error between the first initial position and the second initial position is smaller than a preset error, if so, using any one of the first initial position and the second initial position as the position of the current equipment, and if not, entering the next step;
step D, mapping the first initial position and the second initial position to a road section of a navigation map according to a preset mapping rule to respectively obtain a first map matching point and a second map matching point, and obtaining a first geographic feature and a second geographic feature corresponding to the first map matching point and the second map matching point;
step E, acquiring a panoramic image of the vehicle, and acquiring a third geographic feature around the vehicle through image recognition;
and F, taking the position corresponding to the geographical feature which is most matched with the third geographical feature in the first geographical feature and the second geographical feature as the position of the current equipment.
Specifically, the preset mapping rule includes:
step d1, obtaining an original position point of the initial position corresponding to the map;
d2, acquiring all road sections in a square area with the original position point as the center and the preset length as the side length, and solving the shortest vertical distance from the original position point to each road section;
step d3, acquiring the current driving direction of the vehicle, and solving the included angle between the driving direction and each road section;
d4, calculating the matching value of the initial position and each road section according to the matching relation;
and d5, determining the road section corresponding to the minimum one in the matching values as the matching road section.
Specifically, the matching relation is as follows:
K(i)={max(l -2d(i)/l,0)}*d(i)+{max(1-2|α(i)|/π,0)}*|α(i)|，
wherein K (i) represents a matching value, max { } represents a larger one of the operations,ld (i) represents the shortest vertical distance from the original position point to each road section, and alpha (i) represents the included angle between the current driving direction of the vehicle and each road section.
Further, after the step 2, the method further comprises the following steps:
step 3, monitoring the remaining service time of the battery of the current equipment;
and 4, if the residual service time is lower than a preset time value, acquiring the in-car picture at a preset frequency and sending the in-car picture to a server through a current communication channel.
Specifically, the step 3 includes:
step 301, reading the initial voltage, the initial current and the temperature of the battery of the current device;
step 302, obtaining an initial discharge degree corresponding to the initial voltage;
step 303, calculating the net charge transfer amount;
step 304, acquiring the maximum capacity of the battery, and calculating the current discharge degree according to a preset first relational expression;
step 305, calculating the current internal resistance of the battery according to a preset second relational expression;
step 306, obtaining a relation among the open-circuit voltage, the discharge depth and the temperature, and iterating a preset third relation to obtain the current total operation time;
and step 306, obtaining the remaining service time according to a preset fourth relational expression.
Specifically, the first relation is preset as D (t) = D (0) + q (t)/Qmax, where D (t) represents the current discharging degree, D (0) represents the initial discharging degree, q (t) represents the net charge transfer amount, and Qmax represents the maximum capacity of the battery;
the preset second relation is as follows: r (t) = a (t) · e [b(t)*T] Wherein, R (T) represents the current internal resistance, a (T) represents the impedance coefficient related to the current discharging degree D (T) at the time T, b (T) represents the impedance coefficient related to the temperature T at the time T, and e is a natural number;
the preset third relation is as follows: vc (d) (t), t (t)), i (t) × r (t) = Vmin, wherein Vmin represents the system lowest operating voltage, d (t) represents the current discharging degree, t (t) represents the current temperature, i (t) represents the current, and r (t) represents the current internal resistance;
the preset fourth relational expression is as follows: t '= t _ total-t, where t' represents remaining usage time, t _ total represents current total run time, and t represents integration time.
Another aspect of the present invention provides an emergency rescue information transmission apparatus, including:
the system comprises a transmission link module, a first signal module, a second signal module, a signal monitoring module, an image acquisition module and a position determination module, wherein the first signal module, the second signal module, the signal monitoring module, the image acquisition module and the position determination module are connected with the transmission link module; the first initial position module is also connected with the first signal module, the second initial position module is also connected with the second signal module, and the mapping module is also connected with the position determination module; the image identification module is connected with the image acquisition module and is also connected with the position determination module;
the first signal module is used for receiving a first signal and establishing a rescue information transmission channel with the server side according to a first control signal of the transmission link module;
the second signal module is used for receiving a second signal and establishing a rescue information transmission channel with the server side according to a second control signal of the transmission link module;
the signal monitoring module is used for monitoring the second signal strength and sending the second signal strength to the transmission link module;
the transmission link module is used for receiving rescue information and selecting a corresponding rescue information transmission channel according to the second signal strength, wherein the rescue information comprises position information and multimedia data sent by the image acquisition module;
the first initial position module is used for determining a first initial position of the current equipment according to the first signal;
the second initial position module is used for determining a second initial position of the current equipment according to the second signal;
the mapping module is used for mapping the first initial position and the second initial position to a navigation map, generating a first map matching point and a second map matching point, and acquiring a corresponding first geographic feature and a corresponding second geographic feature;
the image acquisition module is used for acquiring video or image information around the vehicle body and in the vehicle;
the image identification module is used for identifying a third geographic feature of the vehicle according to the image acquired by the image acquisition module;
and the position determining module is used for determining the position of the current equipment according to the first signal or the second signal or the first geographic feature, the second geographic feature and the third geographic feature which are fused.
Further, the emergency relief information transmission device further includes: the electric quantity monitoring module is connected with the image acquisition module and used for calculating the remaining service time of the battery, and the image acquisition module selects an image acquisition mode according to the remaining service time of the battery.
The invention has the beneficial effects that: according to the invention, the first signal intensity and the second signal intensity of the current equipment are obtained, the position of the current equipment is determined according to the first signal intensity and the second signal intensity, the position is sent to the server side or/and the communication channel for transmitting rescue information is established, and the image obtaining mode can be automatically switched under the condition that the electric quantity of the system is insufficient, so that the vehicle-mounted emergency rescue system can establish communication connection with the server side under various signal conditions, and the reliability of emergency rescue is improved.
Drawings
Fig. 1 is a schematic flow chart of an emergency rescue information transmission method of the present invention;
fig. 2 is a schematic structural view of an emergency relief information transmission apparatus of the present invention;
fig. 3 is another schematic configuration diagram of the emergency relief information transmission apparatus of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are for reference and illustrative purposes only and are not intended to limit the scope of the invention.
In the flow described in the specification, claims or drawings of the present invention, the serial numbers of the respective steps (e.g., steps 10, 20, etc.) are included for distinguishing the respective steps, and the serial numbers themselves do not represent any execution order. It should be noted that, the descriptions of "first", "second", etc. herein are only used for distinguishing the description objects, etc., and do not represent the order of precedence, nor indicate that "first", "second", etc. are of different types.
Example 1
Step 1, obtaining a first signal intensity and a second signal intensity of current equipment, wherein the first signal is a satellite signal, and the second signal is a mobile network signal.
In this embodiment, the satellite signal may not only provide a positioning signal, but may also transmit multimedia communication signals (e.g., video connection).
In this embodiment, the satellite signal is preferably a beidou satellite signal, and may be another satellite signal that can satisfy the above functions.
And 2, determining the position of the current equipment according to the first signal strength and the second signal strength, and sending the position to a server or/and establishing a communication channel for rescue information transmission.
In this embodiment, the step 2 includes:
step 201, setting a trigger threshold value W0 of the first signal and a decision counter C (n), wherein n represents the sampling times.
Step 202, determining whether the second signal strength is greater than a second preset signal strength threshold, if so, determining whether the first signal strength is greater than a first preset signal strength threshold, and proceeding to the next step, otherwise, proceeding to step 208.
Step 203, determining the position of the current device according to a preset fusion rule, and sending the position or/and establishing a video connection through the second signal, otherwise, entering the next step.
And step 204, determining the position of the current equipment according to the second signal, and sending the position or/and establishing a video connection through the second signal.
Step 205, monitoring the first signal strength, and initializing the decision counter c (n) when the first signal strength is equal to or greater than the trigger threshold W0.
In an implementation, the initialization of the decision counter C (n) is to make n =0 and C (0) = 0.
Step 206, continuously monitoring the first signal strength at a preset sampling rate within a preset time duration, if at least 2 different first signal strengths received in next sampling are equal to or greater than a first preset signal strength threshold, controlling the decision counter c (n) to accumulate in a preset step (for example, 1), otherwise controlling the decision counter c (n) to decrease at a preset multiplying factor k, and returning to step 204.
In a specific implementation, the preset time period may be 10 seconds, and the preset sampling rate may be 10 times per second. The decision counter C (n) is incremented by a predetermined step (e.g., 1), i.e., C (n +1) = C (n) + 1; the decision counter C (n) is decreased by a predetermined multiplying factor k, i.e. C (n +1) = C (n) × k (0< k <1, e.g. 0.4 to 0.6).
Step 207, determining whether the decision counter c (n) is greater than a decision threshold T (e.g. 60), if yes, entering step 203, otherwise, returning to step 205.
And 208, judging whether the first signal strength is greater than a first preset signal strength threshold value, if so, determining the position of the current equipment according to the first signal, and sending the position or/and establishing video connection through the first signal, otherwise, prompting that the positioning fails.
In this embodiment, the preset fusion rule includes:
and A, acquiring a first signal and a second signal.
And B, acquiring a first initial position of the current equipment according to the first signal, and acquiring a second initial position of the current equipment according to the second signal.
And C, judging whether the error between the first initial position and the second initial position is smaller than a preset error, if so, using any one of the first initial position and the second initial position as the position of the current equipment, and otherwise, entering the next step.
And step D, mapping the first initial position and the second initial position to a road section of a navigation map according to a preset mapping rule to respectively obtain a first map matching point and a second map matching point, and obtaining a first geographic feature and a second geographic feature corresponding to the first map matching point and the second map matching point.
And E, acquiring a panoramic image of the vehicle, and acquiring a third geographic feature around the vehicle through image recognition.
And F, taking the position corresponding to the geographical feature which is most matched with the third geographical feature in the first geographical feature and the second geographical feature as the position of the current equipment.
For example, if the first geographic feature and the second geographic feature are a left lane and a right lane respectively, and the third geographic feature identified by the image is a right lane, the second map matching point corresponding to the second geographic feature is determined as the position of the current device.
In this embodiment, the preset mapping rule includes:
and d1, acquiring an original position point P0 corresponding to the initial position on the map.
Step d2, obtaining the preset length with the original position point P0 as the centerlAll the sections R (i) in the square area with the side length are obtained, and the shortest vertical distance d (i) from the original position point P0 to each section R (i) is obtained.
And d3, acquiring the current driving direction of the vehicle, and calculating an included angle alpha (i) between the driving direction and each road section R (i).
In this embodiment, the included angle α (i) is 0 degree in the north-south direction, the clockwise variation range is [0, pi ], and the counterclockwise variation range is [0, -pi ].
And d4, calculating the matching value K (i) of the initial position and each section R (i) according to the matching relation.
In this embodiment, the matching relationship is:
K(i)={max(l-2d(i)/l,0)}*d(i)+{max(1-2|α(i)|/π,0)}*|α(i)|，
wherein K (i) represents a matching value, max { } represents a larger one of the operations,lis a predetermined side length.
And d5, determining the section R (j) corresponding to the minimum one in the matching values K (i) as a matching section.
Example 2
Unlike embodiment 1, this embodiment further includes, after step 2:
and 3, monitoring the remaining service time of the battery of the current equipment.
And 4, if the residual service time is lower than a preset time value, acquiring the in-car picture at a preset frequency and sending the in-car picture to a server through a current communication channel.
In the step, when the electric quantity of the current equipment is too low, the real-time video connection with the server is changed into a mode of transmitting pictures, so that the electric consumption of the system can be effectively reduced, and the service life of the equipment can be prolonged.
In this embodiment, the step 3 includes:
step 301, reading an initial voltage V (0), an initial current I (0) and a temperature T of a battery of the present device.
In specific implementation, relevant parameters such as voltage V, current I and temperature T of the battery are read through an ADC built in the battery.
And 302, acquiring an initial discharge degree D (0) corresponding to the initial voltage V (0).
Step 303, calculate the net charge transfer q (t).
In this embodiment, the step 303 includes: the net charge transfer is obtained by integrating the initial current I (0) over time t, i.e. q (t) = I (0) × t, where t is the integration time.
And 304, acquiring the maximum capacity of the battery, and calculating the current discharging degree according to a preset first relational expression.
In the present embodiment, the first relation is preset as D (t) = D (0) + q (t)/Qmax, where D (t) represents the current discharging degree, D (0) represents the initial discharging degree, q (t) represents the net charge transfer amount, and Qmax represents the maximum capacity of the battery.
And 305, calculating the current internal resistance of the battery according to a preset second relational expression.
In this embodiment, the preset second relation is: r (t) = a (t) · e [b(t)*T] Wherein, r (T) represents the current internal resistance, a (T) represents the resistance coefficient associated with the current discharging degree d (T) at time T, b (T) represents the resistance coefficient associated with the temperature T at time T, and e is a natural number.
In a specific embodiment, the parameter sets [ D (T), a (T), T, b (T) ] for storing the discharge levels and the coefficients a (T), b (T) at temperature may be set in the database.
Step 306, obtaining relational expressions Vc (D) (T) and T (T)) of the open-circuit voltage Vc, the depth of discharge D (T) and the temperature T, and iterating the preset third relational expression to obtain the current total operation time T _ total.
In this embodiment, the preset third relation is: vc (d (t), t (t)) -i (t) × r (t)) = Vmin, where Vmin represents the system minimum operating voltage.
In specific implementation, the relation Vc (d), (t), t (t)) may be obtained by calibration.
And step 306, obtaining the remaining service time according to a preset fourth relational expression.
The preset fourth relational expression is as follows: t '= t _ total-t, where t' represents remaining usage time, t _ total represents current total run time, and t represents integration time.
Example 3
As shown in fig. 2, the present embodiment provides an emergency rescue information transmission apparatus including: the system comprises a transmission link module, a first signal module, a second signal module, a signal monitoring module, an image acquisition module and a position determination module, wherein the first signal module, the second signal module, the signal monitoring module, the image acquisition module and the position determination module are connected with the transmission link module; the first initial position module is also connected with the first signal module, the second initial position module is also connected with the second signal module, and the mapping module is also connected with the position determination module; the image identification module is connected with the image acquisition module and is also connected with the position determination module;
the first signal module is used for receiving a first signal and establishing a rescue information transmission channel with the server side according to a first control signal of the transmission link module;
the second signal module is used for receiving a second signal and establishing a rescue information transmission channel with the server side according to a second control signal of the transmission link module;
the signal monitoring module is used for monitoring the second signal strength and sending the second signal strength to the transmission link module;
the transmission link module is used for receiving rescue information and selecting a corresponding rescue information transmission channel according to the second signal strength, wherein the rescue information comprises position information and multimedia data sent by the image acquisition module;
the first initial position module is used for determining a first initial position of the current equipment according to the first signal;
the second initial position module is used for determining a second initial position of the current equipment according to the second signal;
the mapping module is used for mapping the first initial position and the second initial position to a navigation map, generating a first map matching point and a second map matching point, and acquiring a corresponding first geographic feature and a corresponding second geographic feature;
the image acquisition module is used for acquiring video or image information around the vehicle body and in the vehicle;
the image identification module is used for identifying a third geographic feature of the vehicle according to the image acquired by the image acquisition module;
and the position determining module is used for determining the position of the current equipment according to the first signal or the second signal or the first geographic feature, the second geographic feature and the third geographic feature which are fused.
In this embodiment, the first signal module is a beidou satellite module, and the second signal module is a mobile data module.
The working method of the emergency rescue information transmission device of the present embodiment is as shown in embodiment 1, and is not described again.
Example 4
As shown in fig. 3, unlike embodiment 3, the emergency relief information transmission device of the present embodiment further includes: the image acquisition module is used for acquiring the residual service time of the battery, and selecting an image acquisition mode according to the residual service time of the battery.
The working method of the emergency rescue information transmission device of the present embodiment is as shown in embodiment 2, and is not described again.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention.
Claims (10)
1. An emergency rescue information transmission method, comprising:
step 1, obtaining a first signal intensity and a second signal intensity of current equipment, wherein the first signal is a satellite signal, and the second signal is a mobile network signal;
and 2, determining the position of the current equipment according to the first signal strength and the second signal strength, and sending the position to a server or/and establishing a communication channel for rescue information transmission.
2. An emergency rescue information transmission method according to claim 1, wherein the step 2 includes:
step 201, setting a trigger threshold value and a decision counter of a first signal;
step 202, judging whether the second signal strength is greater than a second preset signal strength threshold value, if so, judging whether the first signal strength is greater than a first preset signal strength threshold value, and entering the next step, otherwise, entering step 208;
step 203, determining the position of the current device according to a preset fusion rule, sending the position or/and establishing video connection through the second signal, and otherwise, entering the next step;
step 204, determining the position of the current device according to the second signal, and sending the position or/and establishing a video connection through the second signal;
step 205, monitoring the first signal strength, and initializing the decision counter when the first signal strength is equal to or greater than the trigger threshold;
step 206, continuously monitoring the first signal strength at a preset sampling rate within a preset time length, if at least 2 different first signal strengths received by next sampling are equal to or greater than a first preset signal strength threshold value, controlling the decision counter to accumulate in preset steps, otherwise, controlling the decision counter to reduce at a preset multiplying power, and returning to the step 204;
step 207, judging whether the judgment counter is larger than a judgment threshold value, if so, entering step 203, otherwise, returning to step 205;
and 208, judging whether the first signal strength is greater than a first preset signal strength threshold value, if so, determining the position of the current equipment according to the first signal, and sending the position or/and establishing video connection through the first signal, otherwise, prompting that the positioning fails.
3. An emergency rescue information transmission method according to claim 2, wherein the preset fusion rule includes:
a, acquiring a first signal and a second signal;
b, acquiring a first initial position of the current equipment according to the first signal, and acquiring a second initial position of the current equipment according to the second signal;
step C, judging whether the error between the first initial position and the second initial position is smaller than a preset error, if so, using any one of the first initial position and the second initial position as the position of the current equipment, and if not, entering the next step;
step D, mapping the first initial position and the second initial position to a road section of a navigation map according to a preset mapping rule to respectively obtain a first map matching point and a second map matching point, and obtaining a first geographic feature and a second geographic feature corresponding to the first map matching point and the second map matching point;
step E, acquiring a panoramic image of the vehicle, and acquiring a third geographic feature around the vehicle through image recognition;
and F, taking the position corresponding to the geographical feature which is most matched with the third geographical feature in the first geographical feature and the second geographical feature as the position of the current equipment.
4. An emergency rescue information transmission method according to claim 3, wherein the preset mapping rule comprises:
step d1, obtaining an original position point of the initial position corresponding to the map;
d2, acquiring all road sections in a square area with the original position point as the center and the preset length as the side length, and solving the shortest vertical distance from the original position point to each road section;
step d3, acquiring the current driving direction of the vehicle, and solving the included angle between the driving direction and each road section;
d4, calculating the matching value of the initial position and each road section according to the matching relation;
and d5, determining the road section corresponding to the minimum one in the matching values as the matching road section.
5. An emergency rescue information transmission method according to claim 4, wherein the matching relation is:
K(i)={max(l -2d(i)/l,0)}*d(i)+{max(1-2|α(i)|/π,0)}*|α(i)|，
wherein K (i) represents a matching value, max { } represents a larger one of the operations,ld (i) represents the shortest vertical distance from the original position point to each road section, and alpha (i) represents the included angle between the current driving direction of the vehicle and each road section.
6. The emergency rescue information transmission method according to claim 1, further comprising, after the step 2:
step 3, monitoring the remaining service time of the battery of the current equipment;
and 4, if the residual service time is lower than a preset time value, acquiring the in-car picture at a preset frequency and sending the in-car picture to a server through a current communication channel.
7. An emergency rescue information transmission method according to claim 6, wherein the step 3 includes:
step 301, reading the initial voltage, the initial current and the temperature of the battery of the current device;
step 302, obtaining an initial discharge degree corresponding to the initial voltage;
step 303, calculating the net charge transfer amount;
step 304, acquiring the maximum capacity of the battery, and calculating the current discharge degree according to a preset first relational expression;
step 305, calculating the current internal resistance of the battery according to a preset second relational expression;
step 306, obtaining a relational expression of the open-circuit voltage, the depth of discharge and the temperature, and iterating a preset third relational expression to obtain the current total operation time;
and step 306, obtaining the remaining service time according to a preset fourth relational expression.
8. The emergency rescue information transmission method according to claim 7, wherein the preset first relation is D (t) = D (0) + q (t)/Qmax, where D (t) represents a current discharging degree, D (0) represents an initial discharging degree, q (t) represents a net charge transfer amount, and Qmax represents a maximum capacity of the battery;
the preset second relation is as follows: r (t) = a (t) · e [b(t)*T] Wherein, R (T) represents the current internal resistance, a (T) represents the impedance coefficient related to the current discharging degree D (T) at the time T, b (T) represents the impedance coefficient related to the temperature T at the time T, and e is a natural number;
the preset third relation is as follows: vc (d) (t), t (t)), i (t) × r (t) = Vmin, wherein Vmin represents the system lowest operating voltage, d (t) represents the current discharging degree, t (t) represents the current temperature, i (t) represents the current, and r (t) represents the current internal resistance;
the preset fourth relational expression is as follows: t '= t _ total-t, where t' represents remaining usage time, t _ total represents current total run time, and t represents integration time.
9. An emergency rescue information transmission device, comprising:
the system comprises a transmission link module, a first signal module, a second signal module, a signal monitoring module, an image acquisition module and a position determination module, wherein the first signal module, the second signal module, the signal monitoring module, the image acquisition module and the position determination module are connected with the transmission link module; the first initial position module is also connected with the first signal module, the second initial position module is also connected with the second signal module, and the mapping module is also connected with the position determination module; the image identification module is connected with the image acquisition module and is also connected with the position determination module;
the first signal module is used for receiving a first signal and establishing a rescue information transmission channel with the server side according to a first control signal of the transmission link module;
the second signal module is used for receiving a second signal and establishing a rescue information transmission channel with the server side according to a second control signal of the transmission link module;
the signal monitoring module is used for monitoring the second signal strength and sending the second signal strength to the transmission link module;
the transmission link module is used for receiving rescue information and selecting a corresponding rescue information transmission channel according to the second signal strength, wherein the rescue information comprises position information and multimedia data sent by the image acquisition module;
the first initial position module is used for determining a first initial position of the current equipment according to the first signal;
the second initial position module is used for determining a second initial position of the current equipment according to the second signal;
the mapping module is used for mapping the first initial position and the second initial position to a navigation map, generating a first map matching point and a second map matching point, and acquiring a corresponding first geographic feature and a corresponding second geographic feature;
the image acquisition module is used for acquiring video or image information around the vehicle body and in the vehicle;
the image identification module is used for identifying a third geographic feature of the vehicle according to the image acquired by the image acquisition module;
and the position determining module is used for determining the position of the current equipment according to the first signal or the second signal or the first geographic feature, the second geographic feature and the third geographic feature which are fused.
10. The emergency relief information transmission device according to claim 9, further comprising: the electric quantity monitoring module is connected with the image acquisition module and used for calculating the remaining service time of the battery, and the image acquisition module selects an image acquisition mode according to the remaining service time of the battery.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030028517A (en) * | 2002-08-08 | 2003-04-08 | 김한석 | Emergency call location provision system which uses mobile network |
| US20060007038A1 (en) * | 2004-03-09 | 2006-01-12 | Boling Brian M | Two-way distress alert and emergency location apparatus and method |
| CN101340700A (en) * | 2007-07-02 | 2009-01-07 | 佛山市顺德区顺达电脑厂有限公司 | Emergency rescue reporting system and method by mobile phone |
| CN102230953A (en) * | 2011-06-20 | 2011-11-02 | 江南大学 | Method for predicting left capacity and health status of storage battery |
| CN104166148A (en) * | 2014-07-14 | 2014-11-26 | 同济大学 | Beidou satellite-based emergency rescue terminal and method |
| CN105376856A (en) * | 2015-10-23 | 2016-03-02 | 浙江大学 | Detection system and cooperative communication positioning method for disaster assistance |
| CN107767661A (en) * | 2017-11-23 | 2018-03-06 | 李党 | Real time vehicle tracking system |
| CN108303720A (en) * | 2018-01-08 | 2018-07-20 | 深圳市海梁科技有限公司 | A kind of vehicle positioning method, device and terminal device |
| CN109039491A (en) * | 2017-06-09 | 2018-12-18 | 北京天江源科技有限公司 | For the method for Geological Hazards Monitoring, system, equipment and storage medium |
| CN109633457A (en) * | 2019-02-22 | 2019-04-16 | 上海度普新能源科技有限公司 | A kind of acquisition methods and acquisition system of remaining capacity |
| CN110609308A (en) * | 2019-09-23 | 2019-12-24 | 深圳市沃特沃德股份有限公司 | Terminal position positioning method and device, storage medium and computer equipment |
| CN111263316A (en) * | 2020-03-17 | 2020-06-09 | 湖南大平安安全科技有限公司 | Emergency rescue package and emergency rescue method thereof |
| CN111417068A (en) * | 2020-03-26 | 2020-07-14 | 深圳市微测检测有限公司 | Vehicle auxiliary navigation positioning method, device and equipment and readable storage medium |
| WO2020253010A1 (en) * | 2019-06-17 | 2020-12-24 | 魔门塔(苏州)科技有限公司 | Method and apparatus for positioning parking entrance in parking positioning, and vehicle-mounted terminal |
| CN113872668A (en) * | 2021-09-26 | 2021-12-31 | 安徽信息工程学院 | Emergency rescue system and method |
-
2022
- 2022-04-25 CN CN202210439097.0A patent/CN114867000B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030028517A (en) * | 2002-08-08 | 2003-04-08 | 김한석 | Emergency call location provision system which uses mobile network |
| US20060007038A1 (en) * | 2004-03-09 | 2006-01-12 | Boling Brian M | Two-way distress alert and emergency location apparatus and method |
| WO2006028995A2 (en) * | 2004-09-03 | 2006-03-16 | Procon, Inc. | Two-way distress alert and emergency location apparatus and method |
| CN101340700A (en) * | 2007-07-02 | 2009-01-07 | 佛山市顺德区顺达电脑厂有限公司 | Emergency rescue reporting system and method by mobile phone |
| CN102230953A (en) * | 2011-06-20 | 2011-11-02 | 江南大学 | Method for predicting left capacity and health status of storage battery |
| CN104166148A (en) * | 2014-07-14 | 2014-11-26 | 同济大学 | Beidou satellite-based emergency rescue terminal and method |
| CN105376856A (en) * | 2015-10-23 | 2016-03-02 | 浙江大学 | Detection system and cooperative communication positioning method for disaster assistance |
| CN109039491A (en) * | 2017-06-09 | 2018-12-18 | 北京天江源科技有限公司 | For the method for Geological Hazards Monitoring, system, equipment and storage medium |
| CN107767661A (en) * | 2017-11-23 | 2018-03-06 | 李党 | Real time vehicle tracking system |
| CN108303720A (en) * | 2018-01-08 | 2018-07-20 | 深圳市海梁科技有限公司 | A kind of vehicle positioning method, device and terminal device |
| CN109633457A (en) * | 2019-02-22 | 2019-04-16 | 上海度普新能源科技有限公司 | A kind of acquisition methods and acquisition system of remaining capacity |
| WO2020253010A1 (en) * | 2019-06-17 | 2020-12-24 | 魔门塔(苏州)科技有限公司 | Method and apparatus for positioning parking entrance in parking positioning, and vehicle-mounted terminal |
| CN110609308A (en) * | 2019-09-23 | 2019-12-24 | 深圳市沃特沃德股份有限公司 | Terminal position positioning method and device, storage medium and computer equipment |
| CN111263316A (en) * | 2020-03-17 | 2020-06-09 | 湖南大平安安全科技有限公司 | Emergency rescue package and emergency rescue method thereof |
| CN111417068A (en) * | 2020-03-26 | 2020-07-14 | 深圳市微测检测有限公司 | Vehicle auxiliary navigation positioning method, device and equipment and readable storage medium |
| CN113872668A (en) * | 2021-09-26 | 2021-12-31 | 安徽信息工程学院 | Emergency rescue system and method |
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|---|---|
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