CN109847254B

CN109847254B - Movable modular intelligent fire-fighting on-duty guarantee equipment and related products

Info

Publication number: CN109847254B
Application number: CN201910086400.1A
Authority: CN
Inventors: 李翔; 罗成刚; 罗捷
Original assignee: Fsts Modular Equipment Manufacturing Yangzhou Ltd; Xunjiean Emergency Equipment Technology Hubei Co ltd; Xunjiean Fire Fighting And Rescue Technology Shenzhen Co ltd
Current assignee: Fsts Modular Equipment Manufacturing Yangzhou Ltd; Xunjiean Emergency Equipment Technology Hubei Co ltd; Xunjiean Fire Fighting And Rescue Technology Shenzhen Co ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2021-04-27
Anticipated expiration: 2039-01-29
Also published as: CN109847254A

Abstract

The embodiment of the application discloses a movable modular intelligent fire-fighting on-duty guarantee equipment method and a related product, and the method comprises the following steps: the electric fire monitoring device obtains the operating parameters of an electric line, the 3D camera obtains a 3D face image of a user, the data forwarding device sends first data transmission information corresponding to the operating parameters and second data transmission information corresponding to the 3D face image to the fire-fighting cloud platform, the fire-fighting cloud platform determines the data transmission sequence of the operating parameters and the 3D face image according to the first data transmission information and the second data transmission information, the data transmission sequence is sent to the data forwarding device, the data forwarding device transmits the operating parameters and the 3D face image to the fire-fighting cloud platform according to the data transmission sequence, and therefore the data are forwarded more safely and efficiently by forwarding the operating parameters obtained by the electric fire monitoring device and the 3D face image obtained by the 3D camera according to the data forwarding device.

Description

Movable modular intelligent fire-fighting on-duty guarantee equipment and related products

Technical Field

The application relates to the technical field of electronics, in particular to a movable modular intelligent fire-fighting on-duty guarantee device, a data transmission method and a related product.

Background

At present, along with economic development, the urban scale degree is increasingly improved, the occurrence probability of urban fire, sudden disaster accidents and the like is increased year by year, and the casualties and property losses are increased year by year.

Along with the continuous development of science and technology, intelligent technology has also obtained the development of rapidity, along with intelligent technology's development, and a lot of applications about intelligent technology also appear in a large number, and the guarantee equipment that the fire control of fire station is on duty also awaits promoting, consequently, how to carry out the problem of fire prevention, fire control guarantee more intelligently, high-efficiently urgent solution.

Disclosure of Invention

The embodiment of the application provides a movable modularization wisdom fire control support on duty is equipped and relevant product, through the operating parameter that transmits electric fire monitoring devices and the 3D face image that the 3D camera acquireed according to data forwarding device to realize retransmitting above-mentioned data more safely, high-efficiently.

In a first aspect, the embodiment of the application provides a movable modular intelligent fire-fighting on-duty guarantee device, the device comprises an electrical fire monitoring device, a 3D face recognition intelligent access control system, a data forwarding device and a fire-fighting cloud platform, the access control system comprises a 3D camera, the electrical fire monitoring device and the access control system are respectively connected with the data forwarding device, the data forwarding device is connected with the fire-fighting cloud platform, wherein,

the electrical fire monitoring device is used for acquiring the operating parameters of the power line and sending the operating parameters to the data forwarding device;

the 3D camera is used for acquiring a 3D face image of a user and sending the 3D face image to the data forwarding device;

the data forwarding device is used for sending first data transmission information corresponding to the operation parameters and second data transmission information corresponding to the 3D face image to the fire-fighting cloud platform;

the fire fighting cloud platform is used for determining the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and sending the data transmission sequence to the data forwarding device;

and the data forwarding device is also used for transmitting the operation parameters and the 3D face images to the fire-fighting cloud platform according to the data transmission sequence.

In a second aspect, an embodiment of the present application provides a data transmission method, is applied to portable modularization wisdom fire control guarantee equipment on duty, the equipment includes electric fire monitoring device, 3D face identification intelligent access control system, data forwarding device and fire control cloud platform, access control system includes the 3D camera, electric fire monitoring device with access control system respectively with data forwarding device connects, data forwarding device with fire control cloud platform connects, the method includes:

the electrical fire monitoring device acquires the operating parameters of the power line and sends the operating parameters to the data forwarding device;

the 3D camera acquires a 3D face image of a user and sends the 3D face image to the data forwarding device;

the data forwarding device sends first data transmission information corresponding to the operation parameters and second data transmission information corresponding to the 3D face image to the fire-fighting cloud platform;

the fire fighting cloud platform determines the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and sends the data transmission sequence to the data forwarding device;

and the data forwarding device transmits the operation parameters and the 3D face image to the fire-fighting cloud platform according to the data transmission sequence.

In a third aspect, an embodiment of the present application provides a data transmission device, is applied to portable modularization wisdom fire control support equipment on duty, the device includes: electric fire monitoring devices, 3D face identification intelligence access control system, data forwarding device and fire control cloud platform, access control system includes the 3D camera, electric fire monitoring devices with access control system respectively with data forwarding device connects, data forwarding device with fire control cloud platform connects, the device includes:

the acquisition unit is used for acquiring the operating parameters of the electric line through the electric fire monitoring device and sending the operating parameters to the data forwarding device; acquiring a 3D face image of a user through the 3D camera, and sending the 3D face image to the data forwarding device;

a sending unit, configured to send, to the fire cloud platform through the data forwarding device, first data transmission information corresponding to the operation parameter and second data transmission information corresponding to the 3D face image;

the determining unit is used for determining the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information through the fire-fighting cloud platform, and sending the data transmission sequence to the data forwarding device;

the sending unit is further configured to transmit the operation parameters and the 3D face image to the fire-fighting cloud platform through the data forwarding device according to the data transmission sequence.

In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps of the second aspect of the embodiment of the present application.

In a fifth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the second aspect of the present application.

In a sixth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the second aspect of embodiments of the present application. The computer program product may be a software installation package.

It can be seen that in the mobile modular intelligent fire-fighting on-duty safeguard equipment and related products described in the embodiments of the present application, the electrical fire monitoring device acquires an operating parameter of an electric line, transmits the operating parameter to the data forwarding device, the 3D camera acquires a 3D face image of a user, and transmits the 3D face image to the data forwarding device, the data forwarding device transmits first data transmission information corresponding to the operating parameter and second data transmission information corresponding to the 3D face image to the fire cloud platform, the fire cloud platform determines a data transmission sequence of the operating parameter and the 3D face image according to the first data transmission information and the second data transmission information, transmits the data transmission sequence to the data forwarding device, and the data forwarding device transmits the operating parameter and the 3D face image to the fire cloud platform according to the data transmission sequence, and thus, the data are forwarded more safely and efficiently by forwarding the operating parameters acquired by the electrical fire monitoring device and the 3D face image acquired by the 3D camera according to the data forwarding device.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1A is a schematic structural diagram of a mobile modular intelligent fire-fighting duty guarantee equipment provided in an embodiment of the present application;

fig. 1B is a schematic flowchart of a data transmission method according to an embodiment of the present application;

fig. 2 is a schematic flowchart of another data transmission method provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of another configuration of a mobile modular intelligent fire-fighting duty guarantee equipment according to an embodiment of the present application;

fig. 4A is a block diagram illustrating functional modules of a data transmission device according to an embodiment of the present disclosure;

fig. 4B is a modified structure of the data transmission device described in fig. 4A according to an embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The following describes embodiments of the present application in detail.

Referring to fig. 1A, fig. 1A is a mobile modular intelligent fire-fighting on-duty security equipment 100 provided in an embodiment of the present application, which may include an electrical fire monitoring device 101, a 3D face recognition intelligent access control system 102, a data forwarding device 103, and a fire cloud platform 104, where the access control system 102 includes a 3D camera, the electrical fire monitoring device 101 and the access control system 102 are respectively connected to the data forwarding device 103, the data forwarding device 103 is connected to the fire cloud platform 104, where,

the electrical fire monitoring device 101 is configured to obtain an operation parameter of a power line, and send the operation parameter to the data forwarding device;

the data forwarding device 103 is configured to send first data transmission information corresponding to the operation parameter and second data transmission information corresponding to the 3D face image to the fire cloud platform;

the fire fighting cloud platform 104 is configured to determine the operation parameters and a data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and send the data transmission sequence to the data forwarding device;

the data forwarding device 103 is further configured to transmit the operation parameters and the 3D face image to the fire cloud platform according to the data transmission sequence.

In the embodiment of the application, 3D face identification intelligence access control system includes the 3D camera, and the 3D camera is used for acquireing 3D face image, then carries out face identification through carrying out 3D face image, realizes fire fighter's daily attendance management.

Wherein, electric fire monitoring devices can set up in resident living area, perhaps among block terminal, the switch board that sets up in power consumption region such as industrial production region, and electric fire monitoring devices detects power consumption circuit's operating parameter to can have when unusual at the operating parameter, maintain the consumer, perhaps report to the police the early warning to the dangerous condition.

Wherein, data transfer device can with above-mentioned electric fire monitoring device, be connected between access control system and the fire control cloud platform, specifically, can set up unified communication protocol between data transfer device and electric fire monitoring device, access control system and fire control cloud platform, thereby, receive the operating parameter that electric fire monitoring device sent and the 3D face image that access control system sent, then, send operating parameter and 3D face image to fire control cloud platform, specifically, the data forwarding order of accessible fire control cloud platform operating parameter and 3D face image, then forward to fire control cloud platform according to the data forwarding order. In addition, data forwarding device still can receive the sensory data that smoke sensor, gas monitoring sensor, level sensor, fire engine positioning sensor etc. sent, then sends the sensory data received to fire control cloud platform to, can transmit sensory data more safely, high-efficiently.

The fire fighting cloud platform may include a processor and a memory, the memory configured to store a received first location of a fire station and to store an obtained operating status of a target fire station, the processor configured to determine a scheduling policy of the target fire truck based on the operating status and the first location.

Examples of the memory include, but are not limited to, a hard disk drive memory, a non-volatile memory (e.g., a flash memory or other electronically programmable read-only memory used to form a solid state drive), a volatile memory (e.g., a static or dynamic random access memory, etc.), and the like. The processor may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

The fire-fighting on-duty guarantee equipment can further comprise a smoke sensing device, the smoke sensing device can be arranged in a resident living area or an industrial production area, specifically, a community fire-fighting internet of things can be established for a community, the smoke sensing device is arranged in facilities and buildings built by various organizations in the community, particularly places where smoke and gas are easy to occur to cause fire disasters, and smoke sensing data of various places or areas in the community can be detected through the smoke sensing device.

The fire protection duty support equipment may further include a gas monitoring sensor. The gas monitoring sensor can detect combustible gas in the environment, such as methane and carbon monoxide, thereby, can report to the police the early warning when combustible gas's concentration exceeds standard.

The fire protection duty support equipment may further include a liquid level sensor. The liquid level sensor can detect the residual water quantity, the residual foam dosage and other liquids in the fire engine in the fire station, so that the water quantity and the foam dosage can be supplemented in time when the residual water quantity and the foam dosage are insufficient.

The fire-fighting on-duty support equipment can also comprise a fire-fighting truck position tracking system. The fire fighting truck position tracking system can be wrapped with a positioning device, the positioning device is used for acquiring position information of a fire fighting truck, and the fire fighting truck is timely tracked to be in a static standby state and still in an on-duty working state, so that effective distribution management is carried out on the fire fighting truck.

The fire-fighting on-duty support equipment can also comprise a fire-fighting and rescue intelligent helmet. The intelligent helmet can include the microphone, the earphone, the camera, infrared thermal imager, locator and little projection arrangement, the intelligent helmet can carry out communication connection with fire control cloud platform, when the fire fighter wears the intelligent helmet, accessible fire control helmet talks with other fire fighters of wearing the fire control helmet, still can talk with the commander of fire control cloud platform, furthermore, can acquire the field data in fire control and the rescue environment through camera and infrared thermal imager, thereby accessible field data analysis dangerous condition, and generate the route of fleing, show the route of fleing through little projection arrangement, instruct the fire fighter to rescue and flee.

In one possible example, the first data transfer information includes a first data transfer type and a first data memory size of the operating parameter; the second data transmission information includes a second data transmission type and a second data memory size of the 3D face image, and in the aspect of determining the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, the fire cloud platform is specifically configured to:

determining a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type according to a preset corresponding relation between the data transmission types and the priorities;

determining a third priority corresponding to the size of the first data memory and a fourth priority corresponding to the size of the second data memory according to a preset corresponding relation between the size of the memory and the priority;

when the size of the second data memory is smaller than or equal to a preset memory, taking the priority sequence of the first priority and the second priority as the data transmission sequence of the operation parameters and the 3D face image;

and when the size of the second data memory is larger than the preset memory, taking the priority sequence of the third priority and the fourth priority as the data transmission sequence of the operation parameters and the 3D face images.

In one possible example, in terms of the operating parameters of the electric line for acquisition, the electrical fire monitoring device is particularly adapted to:

acquiring the operation parameters according to a first preset time period;

the fire fighting cloud platform is further used for receiving a first operation parameter corresponding to a first time, determining a second preset time period corresponding to the operation parameter when the first operation parameter meets a preset condition, and sending the second preset time period to the data forwarding device;

the data forwarding device is further configured to forward the second preset time period to the electrical fire monitoring device, and instruct the electrical fire monitoring device to adjust the acquisition period of the operating parameter from the first preset time period to the second preset time period, where the second preset time period is smaller than the first preset time period.

In one possible example, the first operating parameter includes a parameter in at least one of the following dimensions: voltage, electric current, leakage current, wire temperature, circuit ambient temperature, fire control cloud platform still is used for:

acquiring at least one preset threshold corresponding to at least one dimension parameter in the first operation parameters, wherein each dimension parameter corresponds to one preset threshold;

comparing at least one dimension parameter in the first operation parameters with a corresponding preset threshold value respectively to obtain at least one comparison result;

and if the comparison result exceeding the corresponding preset threshold value exists in the at least one comparison result, determining that the first operation parameter meets a preset condition.

In one possible example, the fire cloud platform is further configured to determine safety early warning information according to the operation parameter when the operation parameter meets the preset condition; matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, and sending the matching result to the access control system;

and the access control system is also used for carrying out attendance management on target fire fighters corresponding to the 3D face image templates successfully matched with the 3D face images when the 3D face images are successfully matched with the 3D face image templates in the preset image library.

Referring to fig. 1B, fig. 1B is a schematic flow diagram of a data transmission method provided in an embodiment of the present application, and as shown in fig. 1B, the data transmission method is applied to a mobile modular intelligent fire-fighting on-duty security device as shown in fig. 1A, where the device includes an electrical fire monitoring device, a 3D face recognition intelligent access control system, a data forwarding device and a fire cloud platform, the access control system includes a 3D camera, the electrical fire monitoring device and the access control system are respectively connected to the data forwarding device, and the data forwarding device is connected to the fire cloud platform, and the data transmission method includes:

101. the electric fire monitoring device acquires the operating parameters of the electric line and sends the operating parameters to the data forwarding device.

In this application embodiment, can set up electric fire monitoring devices in block terminal, the switch board that sets up in power consumption region such as resident living area, perhaps industrial production region, for example, set up electric fire monitoring devices in block terminal, the switch board in the residential quarter residential building near the fire station, or in the factory building near the fire station to, can obtain the operating parameter of electric line according to electric fire monitoring devices.

Wherein the operating parameter may be at least one of: voltage, current, leakage current, wire temperature, line ambient temperature, etc., without limitation. In specific implementation, the operation parameters may be obtained by an electrical fire monitoring device, and the operation parameters may also be obtained by a fault arc type electrical fire detector, specifically, the operation parameters of the power line may be obtained, and the operation parameters may be obtained according to a preset time period, for example, a plurality of voltages, currents, leakage currents, wire temperatures, line ambient temperatures, and the like corresponding to a plurality of time points may be obtained in the preset time period, and the operation parameters within a continuous preset time length may also be obtained, for example, the currents within the preset time length may be obtained, and a current waveform diagram within the preset time length may be obtained.

Optionally, in step 101, obtaining the operating parameter of the power line may include the following steps:

11. the electrical fire monitoring device acquires the operation parameters according to a first preset time period;

12. the fire fighting cloud platform receives a first operation parameter corresponding to a first time, determines a second preset time period corresponding to the operation parameter when the first operation parameter meets a preset condition, and sends the second preset time period to the data forwarding device;

13. and the data forwarding device forwards the second preset time period to the electrical fire monitoring device and instructs the electrical fire monitoring device to adjust the acquisition period of the operating parameters from the first preset time period to the second preset time period, wherein the second preset time period is smaller than the first preset time period.

In the embodiment of the application, the operation parameters can be obtained according to the first preset time period, and the first preset time period is greater than the second preset time period, so that the operation parameters can be obtained in a larger time period when the operation parameters of the power circuit are more normal, and the energy consumption can be reduced on the basis of ensuring the normal obtaining of the operation parameters.

In this embodiment of the present application, a first preset condition may be preset, and the first preset condition may include at least one of the following: in the operation parameters, the voltage is in a first preset voltage value range, the current is in a first preset current value range, the leakage current is in a first preset leakage current value range, the wire temperature is in a first preset wire temperature value range, the line environment temperature is in a first preset line environment temperature value range, and the like. After the operation parameters are obtained, whether the operation parameters meet a first preset condition or not can be judged, and if yes, the possibility of fire hazard exists in the power utilization line is indicated. And then, a second preset time period can be determined, the second preset time period is sent to the electrical fire monitoring device, and the electrical fire monitoring device is instructed to adjust the acquisition period of the operation parameters from the first preset time period to the second preset time period, so that the time period for acquiring the operation parameters can be shortened when the operation parameters of the power circuit are abnormal and fire danger is possibly caused, the latest operation parameters can be acquired more timely, and fire fighting fire rescue can be better realized.

Optionally, the first operating parameter comprises a parameter of at least one of the following dimensions: voltage, electric current, leakage current, wire temperature, circuit ambient temperature, in this application embodiment, can also include the following step:

a1, the fire fighting cloud platform obtains at least one preset threshold value corresponding to at least one dimension parameter in the first operation parameters, and each dimension parameter corresponds to one preset threshold value;

a2, comparing at least one dimension parameter in the first operation parameter with a corresponding preset threshold value respectively to obtain at least one comparison result;

a3, if the comparison result exceeding the corresponding preset threshold value exists in the at least one comparison result, determining that the first operation parameter meets the preset condition.

In the embodiment of the present application, the preset threshold corresponding to the parameter of each dimension in the voltage, the current, the leakage current, the wire temperature, and the line environment temperature may be stored in advance, and specifically, the preset voltage threshold, the preset current threshold, the preset leakage current threshold, the preset wire temperature threshold, and the preset line environment temperature threshold corresponding to the voltage, the current, the leakage current, the wire temperature, and the line environment temperature may be set, so that the parameter of each dimension may be compared with the corresponding preset threshold to obtain the comparison result.

102. The 3D camera acquires a 3D face image of a user, and sends the 3D face image to the data forwarding device.

The method comprises the steps of obtaining plane information and depth information of a face of a user through a 3D camera, then carrying out 3D modeling according to the depth information and the plane information to obtain a 3D face image, specifically, obtaining multiple groups of depth information and plane information of multiple angles, and carrying out 3D modeling according to the multiple groups of depth information and plane information to obtain the 3D face image.

103. And the data forwarding device sends first data transmission information corresponding to the operation parameters and second data transmission information corresponding to the 3D face image to the fire-fighting cloud platform.

In the embodiment of the application, after receiving the operation parameters and the 3D face image, the data forwarding device can obtain first data transmission information and second data transmission information corresponding to the operation parameters and the 3D face image respectively, and then send the first data transmission information and the second data transmission information to the fire-fighting cloud platform.

104. And the fire-fighting cloud platform determines the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and sends the data transmission sequence to the data forwarding device.

The fire-fighting cloud platform can determine the operation parameters and the data transmission sequence of the 3D face images according to the size sequence of the first data memory and the second memory, and can also determine the operation parameters and the data transmission sequence of the 3D face images according to the priority sequences corresponding to the first data transmission type and the second data transmission type respectively.

Optionally, in step 104, the first data transmission information includes a first data transmission type and a first data memory size of the operating parameter; the determining the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information may include:

41. the fire fighting cloud platform determines a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type according to a preset corresponding relation between the data transmission types and the priorities;

42. determining a third priority corresponding to the size of the first data memory and a fourth priority corresponding to the size of the second data memory according to a preset corresponding relation between the size of the memory and the priority;

43. when the size of the second data memory is smaller than or equal to a preset memory, taking the priority sequence of the first priority and the second priority as the data transmission sequence of the operation parameters and the 3D face image;

44. and when the size of the second data memory is larger than the preset memory, taking the priority sequence of the third priority and the fourth priority as the data transmission sequence of the operation parameters and the 3D face images.

After the fire-fighting cloud platform receives the first data transmission information and the second data transmission information sent by the data forwarding device, a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type can be determined according to the corresponding relation between the preset data transmission type and the priority, a third priority corresponding to the first data memory size and a fourth priority corresponding to the second data memory size can be determined according to the corresponding relation between the preset memory size and the priority, wherein if the second data memory size is smaller than or equal to the preset memory, the number of 3D face images is small, the number of users needing face recognition in the current scene is small, and further, the operation parameters and the data transmission of the 3D face images can be determined according to the priority corresponding to the data transmission types Specifically, the higher the priority corresponding to the data transmission type is, the earlier the transmission sequence of the transmission data corresponding to the data transmission type is; if the size of the second data memory is larger than the preset memory, the number of the 3D face images is small, and more users in the current scene need to perform face recognition, and then the operation parameters and the data transmission sequence of the 3D face images can be determined according to the priority corresponding to the size of the data memory.

105. And the data forwarding device transmits the operation parameters and the 3D face image to the fire-fighting cloud platform according to the data transmission sequence.

The data forwarding device transmits the operating parameters and the 3D face images to the fire fighting cloud platform according to the data transmission sequence, and specifically can transmit the operating parameters and the 3D face images according to the acquired memory size, for example, when the memory size of the 3D face images is large, the data packets corresponding to the 3D face images can be divided into a plurality of data sub-packets, and then the plurality of data sub-packets are sequentially transmitted to the fire fighting cloud platform.

Optionally, before the operation parameters and the 3D face images are transmitted to the fire-fighting cloud platform through the data forwarding device, the operation parameters and the 3D face images can be encrypted respectively, and after the operation parameters and the 3D face images are transmitted to the fire-fighting cloud platform, the encrypted operation parameters and the encrypted 3D face images are decrypted by the fire-fighting cloud platform, so that the safety of data transmission can be enhanced.

Optionally, in an embodiment of the present application, the method may further include the following steps:

b1, the fire-fighting cloud platform is further used for determining safety early warning information according to the operation parameters when the operation parameters meet the preset conditions; matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, and sending the matching result to the access control system;

and B2, the access control system is further used for carrying out attendance management on target fire fighters corresponding to the 3D face image templates successfully matched with the 3D face images when the 3D face images are successfully matched with the 3D face image templates in the preset image library.

When the operation parameters meet the preset conditions, the fire hazard caused by the power utilization line possibly exists, so that the safety early warning information can be determined according to the operation parameters, and the fire hazard can be early warned in advance.

The method comprises the steps of matching a 3D face image with a 3D face image template in a preset image library, determining that matching is successful if the 3D face image template with a matching value exceeding a preset matching value exists in the preset image library, and recording attendance information of fire fighters corresponding to the successfully matched 3D face image template.

Optionally, in the step B1, matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, the method may include the following steps:

c1, acquiring an image quality evaluation value of the 3D face image;

c2, determining a target matching threshold corresponding to the image quality evaluation value according to a preset mapping relation between the image quality evaluation value and the matching threshold;

c3, extracting the contour of the 3D face image to obtain a first peripheral contour;

c4, extracting feature points of the 3D face image to obtain a first feature point set;

c5, matching the first peripheral outline with a second peripheral outline of any 3D face image template in a preset image library to obtain a first matching value;

c6, matching the first feature point set with a second feature point set of any 3D face image template to obtain a second matching value;

and C7, determining a target matching value according to the first matching value and the second matching value.

And C8, when the target matching value is larger than the target matching threshold value, confirming that the 3D face image is successfully matched with any 3D face image.

In the face recognition process, success or failure depends on image quality of the face image to a great extent, so that image quality evaluation can be performed on the 3D face image to obtain an image quality evaluation value, and the image quality evaluation value is stored in a memory of the face recognition device, specifically, image quality evaluation can be performed on the acquired 3D face image by using image quality evaluation indexes to obtain an image quality evaluation value, and the image quality evaluation indexes can include but are not limited to: the average gray scale, mean square error, entropy, edge preservation, signal-to-noise ratio, etc. may be defined as the larger the resulting image quality evaluation value, the better the image quality.

In addition, a mapping relation between a preset image quality evaluation value and a matching threshold value can be stored, a target matching threshold value corresponding to the target image quality evaluation value is further determined according to the mapping relation, on the basis, contour extraction can be carried out on the 3D face image to obtain a first peripheral contour, feature point extraction is carried out on the 3D face image to obtain a first feature point set, the first peripheral contour is sequentially matched with the peripheral contour of each 3D face image template in a preset image library until a 3D face image template corresponding to the peripheral contour successfully matched with the first peripheral contour is obtained, for any 3D face image template, the first peripheral contour can be matched with a second peripheral contour of any 3D face image template to obtain a first matching value, and the first feature point set is matched with a second feature point set of the 3D face image template, the second matching value is obtained, and then the target matching value is determined according to the first matching value and the second matching value, for example, a mapping relationship between the matching value and the weight value pair may be stored in advance, so as to obtain a first weight coefficient corresponding to the first matching value and a second weight coefficient corresponding to the second matching value, where the target matching value is the first matching value and the first weight coefficient + the second matching value and the second weight coefficient, so that the face matching process is dynamically adjusted, which is beneficial to improving the face recognition efficiency.

In addition, the algorithm of the contour extraction may be at least one of: hough transform, canny operator, etc., and the algorithm for feature point extraction may be at least one of the following algorithms: harris corners, Scale Invariant Feature Transform (SIFT), and the like, without limitation.

It can be seen that in the data transmission method described in the embodiment of the present application, the electrical fire monitoring device acquires the operation parameters of the electric line, transmits the operation parameters to the data forwarding device, the 3D camera acquires the 3D face image of the user, and transmits the 3D face image to the data forwarding device, the data forwarding device transmits first data transmission information corresponding to the operation parameters and second data transmission information corresponding to the 3D face image to the fire cloud platform, the fire cloud platform determines the data transmission sequence of the operation parameters and the 3D face image according to the first data transmission information and the second data transmission information, transmits the data transmission sequence to the data forwarding device, the data forwarding device transmits the operation parameters and the 3D face image to the fire cloud platform according to the data transmission sequence, and thus, by forwarding the operation parameters acquired by the electrical fire monitoring device and the 3D face image acquired by the 3D camera according to the data forwarding device, so as to realize the safe and efficient forwarding of the data.

Referring to fig. 2, fig. 2 is a schematic flow chart of another data transmission method according to an embodiment of the present application, as shown in fig. 2, applied to the mobile modular intelligent fire-fighting duty and security equipment shown in fig. 1A, the data transmission method includes:

201. the electric fire monitoring device acquires the operating parameters of the electric line and sends the operating parameters to the data forwarding device.

202. The 3D camera acquires a 3D face image of a user and sends the 3D face image to the data forwarding device.

203. And the data forwarding device sends first data transmission information corresponding to the operation parameters and second data transmission information corresponding to the 3D face image to the fire-fighting cloud platform.

204. The first data transmission information comprises a first data transmission type and a first data memory size of the operation parameter; the second data transmission information comprises a second data transmission type and a second data memory size of the 3D face image, and the fire-fighting cloud platform determines a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type according to a preset corresponding relation between the data transmission type and the priority.

205. And determining a third priority corresponding to the size of the first data memory and a fourth priority corresponding to the size of the second data memory according to a preset corresponding relation between the size of the memory and the priority.

206. And when the size of the second data memory is smaller than or equal to a preset memory, taking the priority sequence of the first priority and the second priority as the data transmission sequence of the operation parameters and the 3D face image.

207. And when the size of the second data memory is larger than the preset memory, taking the priority sequence of the third priority and the fourth priority as the data transmission sequence of the operation parameters and the 3D face images, and sending the data transmission sequence to the data forwarding device.

208. And the data forwarding device transmits the operation parameters and the 3D face image to the fire-fighting cloud platform according to the data transmission sequence.

For the detailed description of the steps 201 to 208, reference may be made to corresponding steps of the data transmission method described in the foregoing fig. 1B, and details are not repeated here.

It can be seen that in the data transmission method described in the embodiment of the present application, the electrical fire monitoring device obtains the operating parameters of the electric line, the 3D camera obtains the 3D face image of the user, the data forwarding device sends the first data transmission information corresponding to the operating parameters and the second data transmission information corresponding to the 3D face image to the fire cloud platform, the fire cloud platform determines the first priority corresponding to the first data transmission type and the second priority corresponding to the second data transmission type, according to the third priority corresponding to the first data memory size and the fourth priority corresponding to the second data memory size, when the second data memory size is smaller than or equal to the preset memory, the priority sequence of the first priority and the second priority is used as the data transmission sequence of the operating parameters and the 3D face image, and when the second data memory size is larger than the preset memory, and taking the priority sequence of the third priority and the fourth priority as the data transmission sequence of the operation parameters and the 3D face images, sending the data transmission sequence to the data forwarding device, and transmitting the operation parameters and the 3D face images to the fire fighting cloud platform by the data forwarding device according to the data transmission sequence, so that the data are forwarded more safely and efficiently by forwarding the operation parameters acquired by the electrical fire monitoring device and the 3D face images acquired by the 3D camera according to the data forwarding device.

Referring to fig. 3 in keeping with the above embodiments, fig. 3 is a schematic structural diagram of a removable modular intelligent fire-fighting duty and security equipment according to an embodiment of the present application, wherein the equipment includes a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the following steps:

the electric fire monitoring device acquires the operating parameters of the electric line and sends the operating parameters to the data forwarding device;

the fire-fighting cloud platform determines the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and sends the data transmission sequence to the data forwarding device;

In one possible example, the first data transfer information includes a first data transfer type and a first data memory size of the operating parameter; the second data transmission information includes a second data transmission type and a second data memory size of the 3D face image, and in the aspect that the fire cloud platform determines the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, the program includes instructions for executing the following steps:

the fire fighting cloud platform determines a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type according to a preset corresponding relation between the data transmission types and the priorities;

In one possible example, in terms of the obtaining operational parameters of the electrical lines, the program includes instructions for performing the steps of:

the electrical fire monitoring device acquires the operation parameters according to a first preset time period;

the fire fighting cloud platform receives a first operation parameter corresponding to a first time, determines a second preset time period corresponding to the operation parameter when the first operation parameter meets a preset condition, and sends the second preset time period to the data forwarding device;

and the data forwarding device forwards the second preset time period to the electrical fire monitoring device and instructs the electrical fire monitoring device to adjust the acquisition period of the operating parameters from the first preset time period to the second preset time period, wherein the second preset time period is smaller than the first preset time period.

In one possible example, the first operating parameter includes a parameter in at least one of the following dimensions: voltage, current, leakage current, wire temperature, line ambient temperature, the program further comprising instructions for:

the fire fighting cloud platform acquires at least one preset threshold value corresponding to at least one dimension parameter in the first operation parameters, wherein each dimension parameter corresponds to one preset threshold value;

In one possible example, the program further includes instructions for performing the steps of:

when the operation parameters meet the preset conditions, the fire fighting cloud platform determines safety early warning information according to the operation parameters; matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, and sending the matching result to the access control system;

and when the 3D face image is successfully matched with the 3D face image template in the preset image library, the access control system carries out attendance management on the target fire fighter corresponding to the 3D face image template successfully matched with the 3D face image.

Fig. 4A is a block diagram of functional units of a data transmission device according to an embodiment of the present application. This data transmission device is applied to portable modularization wisdom fire control support on duty and equips, equip including electric fire monitoring devices, 3D face identification intelligence access control system, data forwarding device and fire control cloud platform, access control system includes the 3D camera, electric fire monitoring devices with access control system respectively with data forwarding device connects, data forwarding device with fire control cloud platform connects, the device includes: an acquisition unit 401, a transmission unit 402, and a determination unit 403, wherein,

the acquiring unit 401 is configured to acquire an operating parameter of an electric line through the electrical fire monitoring device, and send the operating parameter to the data forwarding device; acquiring a 3D face image of a user through the 3D camera, and sending the 3D face image to the data forwarding device;

the sending unit 402 is configured to send, to the fire cloud platform through the data forwarding device, first data transmission information corresponding to the operation parameter and second data transmission information corresponding to the 3D face image;

the determining unit 403 is configured to determine, by the fire cloud platform, the operating parameter and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and send the data transmission sequence to the data forwarding device;

the sending unit 402 is further configured to transmit the operation parameters and the 3D face image to the fire cloud platform through the data forwarding device according to the data transmission sequence.

Optionally, the first data transmission information includes a first data transmission type and a first data memory size of the operating parameter; the second data transmission information includes a second data transmission type and a second data memory size of the 3D face image, and in terms of determining the operation parameter and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, the determining unit 403 is specifically configured to:

determining a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type according to a preset corresponding relation between the data transmission types and the priorities through the fire-fighting cloud platform;

Optionally, in terms of the operation parameters of the electric line for acquiring, the acquiring unit 401 is specifically configured to:

the electrical fire monitoring device is specifically used for acquiring the operation parameters according to a first preset time period;

receiving a first operation parameter corresponding to a first time through the fire-fighting cloud platform, determining a second preset time period corresponding to the operation parameter when the first operation parameter meets a preset condition, and sending the second preset time period to the data forwarding device;

and forwarding the second preset time period to the electrical fire monitoring device through the data forwarding device, and instructing the electrical fire monitoring device to adjust the acquisition period of the operating parameters from the first preset time period to the second preset time period, wherein the second preset time period is smaller than the first preset time period.

Optionally, the first operating parameter comprises a parameter of at least one of the following dimensions: voltage, current, leakage current, wire temperature, line ambient temperature,

the obtaining unit 401 is further configured to obtain at least one preset threshold corresponding to a parameter of at least one dimension in the first operation parameters, where the parameter of each dimension corresponds to one preset threshold;

the determining unit 403 is further configured to compare at least one dimension parameter of the first operating parameter with a corresponding preset threshold value, so as to obtain at least one comparison result; and if the comparison result exceeding the corresponding preset threshold value exists in the at least one comparison result, determining that the first operation parameter meets a preset condition.

Optionally, as shown in fig. 4B, fig. 4B is a modified structure of the data transmission device described in fig. 4A in the embodiment of the present application, and compared with fig. 4A, the data transmission device may further include: the processing unit 404 is specifically as follows:

the determining unit 403 is further configured to determine safety early warning information according to the operation parameter when the operation parameter meets the preset condition;

the sending unit 402 is further configured to match the 3D face image with a 3D face image template in a preset image library to obtain a matching result, and send the matching result to the access control system;

the processing unit 404 is configured to perform attendance management on a target fire fighter corresponding to the 3D face image template successfully matched with the 3D face image when the 3D face image is successfully matched with the 3D face image template in the preset image library.

It can be seen that, in the data transmission device described in this embodiment of the application, the electrical fire monitoring device obtains the operation parameters of the electric line, the 3D camera obtains the 3D face image of the user, the data forwarding device sends the first data transmission information corresponding to the operation parameters and the second data transmission information corresponding to the 3D face image to the fire cloud platform, the fire cloud platform determines the data transmission sequence of the operation parameters and the 3D face image according to the first data transmission information and the second data transmission information, and sends the data transmission sequence to the data forwarding device, and the data forwarding device transmits the operation parameters and the 3D face image to the fire cloud platform according to the data transmission sequence, so that a safer operation is achieved by forwarding the operation parameters obtained by the electrical fire monitoring device and the 3D face image obtained by the 3D camera according to the data forwarding device, The data is efficiently forwarded.

Embodiments of the present application also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the methods as described in the above method embodiments.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module.

The integrated units, if implemented in the form of software program modules and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a read-only memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and the like.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash disk, ROM, RAM, magnetic or optical disk, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A movable modular intelligent fire-fighting on-duty support equipment, characterized in that the equipment comprises: the system comprises an electrical fire monitoring device, a 3D face recognition intelligent access control system, a data forwarding device and a fire-fighting cloud platform, wherein the access control system comprises a 3D camera, the electrical fire monitoring device and the access control system are respectively connected with the data forwarding device, the data forwarding device is connected with the fire-fighting cloud platform, wherein,

the fire fighting cloud platform is configured to determine the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, and specifically includes: the first data transmission information comprises a first data transmission type and a first data memory size of the operation parameter; the second data transmission information comprises a second data transmission type and a second data memory size of the 3D face image, and a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type are determined according to a preset corresponding relation between the data transmission type and the priority; determining a third priority corresponding to the size of the first data memory and a fourth priority corresponding to the size of the second data memory according to a preset corresponding relation between the size of the memory and the priority; when the size of the second data memory is smaller than or equal to a preset memory, taking the priority sequence of the first priority and the second priority as the data transmission sequence of the operation parameters and the 3D face image; when the size of the second data memory is larger than the preset memory, taking the priority sequence of the third priority and the fourth priority as the data transmission sequence of the running parameters and the 3D face images; transmitting the data transmission sequence to the data forwarding device;

the data forwarding device is further used for transmitting the operation parameters and the 3D face images to the fire-fighting cloud platform according to the data transmission sequence;

the fire fighting cloud platform is further used for determining safety early warning information according to the operation parameters when the operation parameters meet the preset conditions; matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, and sending the matching result to the access control system; and the access control system is also used for carrying out attendance management on target fire fighters corresponding to the 3D face image templates successfully matched with the 3D face images when the 3D face images are successfully matched with the 3D face image templates in the preset image library.

2. The apparatus of claim 1, wherein, in terms of operational parameters of the electrical lines for acquisition,

3. The apparatus of claim 2, wherein the first operating parameter comprises a parameter in at least one of the following dimensions: voltage, electric current, leakage current, wire temperature, circuit ambient temperature, fire control cloud platform still is used for:

4. The utility model provides a data transmission method, its characterized in that is applied to portable modularization wisdom fire control guarantee equipment on duty, the equipment includes electric fire monitoring devices, 3D face identification intelligence access control system, data repeater and fire control cloud platform, access control system includes the 3D camera, electric fire monitoring devices with access control system respectively with data repeater connects, data repeater with fire control cloud platform is connected, the method includes:

the data forwarding device transmits the operation parameters and the 3D face images to the fire-fighting cloud platform according to the data transmission sequence;

when the operation parameters meet preset conditions, the fire fighting cloud platform determines safety early warning information according to the operation parameters; matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, specifically: acquiring an image quality evaluation value of the 3D face image; determining a target matching threshold corresponding to the image quality evaluation value according to a preset mapping relation between the image quality evaluation value and the matching threshold; extracting the contour of the 3D face image to obtain a first peripheral contour; extracting feature points of the 3D face image to obtain a first feature point set; matching the first peripheral contour with a second peripheral contour of any 3D face image template in a preset image library to obtain a first matching value; matching the first feature point set with a second feature point set of any 3D face image template to obtain a second matching value; determining a target matching value according to the first matching value and the second matching value; when the target matching value is larger than the target matching threshold value, confirming that the 3D face image is successfully matched with any 3D face image; and sending the matching result to the access control system.

5. The method of claim 4, wherein the first data transfer information comprises a first data transfer type and a first data memory size of the operating parameter; the second data transmission information includes a second data transmission type and a second data memory size of the 3D face image, and the determining, by the fire cloud platform, the operation parameter and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information includes:

6. The utility model provides a data transmission device, its characterized in that is applied to portable modularization wisdom fire control guarantee on duty and equips, equip including electric fire monitoring devices, 3D face identification intelligence access control system, data repeater and fire control cloud platform, access control system includes the 3D camera, electric fire monitoring devices with access control system respectively with data repeater connects, data repeater with fire control cloud platform connects, the device includes:

the determining unit is used for determining the operation parameters and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information through the fire-fighting cloud platform, and sending the data transmission sequence to the data forwarding device; the first data transmission information comprises a first data transmission type and a first data memory size of the operation parameter; the second data transmission information includes a second data transmission type and a second data memory size of the 3D face image, and in the aspect of determining the operation parameter and the data transmission sequence of the 3D face image according to the first data transmission information and the second data transmission information, the determining unit is specifically configured to: determining a first priority corresponding to the first data transmission type and a second priority corresponding to the second data transmission type according to a preset corresponding relation between the data transmission types and the priorities through the fire-fighting cloud platform; determining a third priority corresponding to the size of the first data memory and a fourth priority corresponding to the size of the second data memory according to a preset corresponding relation between the size of the memory and the priority; when the size of the second data memory is smaller than or equal to a preset memory, taking the priority sequence of the first priority and the second priority as the data transmission sequence of the operation parameters and the 3D face image; when the size of the second data memory is larger than the preset memory, taking the priority sequence of the third priority and the fourth priority as the data transmission sequence of the running parameters and the 3D face images;

the sending unit is further configured to transmit the operating parameters and the 3D face images to the fire-fighting cloud platform through the data forwarding device according to the data transmission sequence;

the determining unit is further configured to determine safety early warning information according to the operation parameters when the operation parameters meet the preset conditions;

the sending unit is further used for matching the 3D face image with a 3D face image template in a preset image library to obtain a matching result, and sending the matching result to the access control system;

and the processing unit is used for carrying out attendance management on the target fire fighter corresponding to the 3D face image template successfully matched with the 3D face image when the 3D face image is successfully matched with the 3D face image template in the preset image library.

7. A removable modular intelligent fire protection duty support equipment comprising a processor, a memory, a communication interface, and one or more programs stored in said memory and configured for execution by said processor, said programs comprising instructions for performing the steps of the method of claim 4 or 5.

8. A computer-readable storage medium, in which a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to claim 4 or 5.