CN111811534A

CN111811534A - Navigation control method, device, storage medium and equipment based on voice instruction

Info

Publication number: CN111811534A
Application number: CN201911359715.5A
Authority: CN
Inventors: 张旭东
Original assignee: Beijing Didi Infinity Technology and Development Co Ltd
Current assignee: Beijing Didi Infinity Technology and Development Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-23
Anticipated expiration: 2039-12-25
Also published as: CN111811534B

Abstract

The present disclosure provides a navigation control method, apparatus, storage medium and device based on voice instruction, the method includes: determining a current first navigation state of a user; and responding to a voice control instruction of a user, and switching from the first navigation state to the second navigation state. According to the method and the device, when a specific voice control instruction of a user is received, different instruction processing logics are executed under different navigation states in combination with the current navigation state of the user, and the current order condition can be combined to directly ensure that a car booking driver can directly enter the navigation state without additionally inputting a destination, so that additional operation is not required, and the use experience of the user can be improved.

Description

Navigation control method, device, storage medium and equipment based on voice instruction

Technical Field

The present disclosure relates to the field of mobile internet, and in particular, to a navigation control method, apparatus, storage medium, and device based on a voice command.

Background

Most of the currently available navigation voice control technologies are directed to self-driving driver users, and the users need to clearly tell the destinations to which the users need to go to enter navigation. In the network car booking scene, a network car booking driver receives an order assigned by the system in most scenes, the order has a clear starting point and a clear ending point, the driver does not need to actively input a destination, a car pooling scene often appears in the network car booking operation process, the starting point and the ending point are often required to be switched in the car pooling scene, and the user can carry out additional operation through redundant control instructions by using the conventional navigation voice control technology to influence the use experience of the user.

Disclosure of Invention

An object of the embodiments of the present disclosure is to provide a navigation control method, apparatus, storage medium and device based on a voice instruction, so as to solve the problem that when a car booking driver uses navigation, the user may perform additional operations through redundant control instructions, which affects the user experience in the prior art.

In order to solve the technical problem, the embodiment of the present disclosure adopts the following technical solutions: a navigation control method based on voice instructions comprises the following steps: determining a current first navigation state of a user; responding to a voice control instruction of a user, and switching from the first navigation state to a second navigation state; wherein, the voice control instruction is any one of the following instructions: starting a navigation instruction, specifying a destination navigation instruction, exiting the navigation instruction, retrieving an information point instruction and determining a sequence number; the first navigation state and the second navigation state are any one of the following states: a waiting state, an end point input state, an end point confirmation state, and a navigation on-way state.

Further, when the voice control instruction is a navigation start instruction, switching from the first navigation state to a second navigation state according to the voice control instruction includes: switching from the wait state to the endpoint input state or the endpoint confirmation state; switching from the end point confirmation state to the navigation en-route state.

Further, the switching from the wait state to the destination entry state or the destination confirmation state includes: judging whether the user is configured with a pick-up driving order or not at present; switching from the waiting state to the terminal point input state when the user is not currently configured with a pick-up drive order; under the condition that the user is currently provided with a pick-up driving order, judging whether the pick-up driving order is in a pick-up driving state; when the pick-up driving order is in a pick-up driving state, taking a boarding point of the pick-up driving order as a navigation terminal, and switching from the waiting state to the terminal confirmation state; and when the pick-up driving order is not in a pick-up driving state, taking a get-off point of the pick-up driving order as a navigation terminal, and switching from the waiting state to the terminal confirmation state.

Further, when the voice control instruction is a specified end point navigation instruction, switching from the first navigation state to a second navigation state according to the voice control instruction includes: switching from the waiting state to the end point input state or the end point confirmation state according to a navigation end point retrieval result; switching from the terminal confirmation state to the terminal input state or keeping the terminal confirmation state according to a navigation terminal retrieval result; and switching from the navigation on-way state to the terminal input state or the terminal confirmation state according to a navigation terminal retrieval result.

Further, when the voice control instruction is a retrieve information point instruction, the switching from the first navigation state to a second navigation state according to the voice control instruction includes: and switching from the end point input state to the end point confirmation state or keeping the end point input state according to the information point retrieval result.

Further, when the voice control instruction is a serial number explicit instruction, switching from the first navigation state to a second navigation state according to the voice control instruction includes: under the condition that the end point corresponding to the serial number explicit instruction is successfully confirmed and the navigation is successfully started, switching from the end point confirmation state to the navigation en-route state; under the conditions that the end point corresponding to the clear sequence number instruction is successfully confirmed and the navigation is failed to be started, switching from the end point confirmation state to the waiting state; and when the end point corresponding to the clear serial number command fails to be confirmed, keeping the end point confirmation state.

Further, when the voice control instruction is an exit navigation instruction, switching from the first navigation state to a second navigation state according to the voice control instruction includes: and switching to a waiting command state from any one of the end point confirmation state, the end point input state or the navigation en-route state.

Further, the voice control instruction further comprises at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjusting instruction and a base map adjusting instruction; when the control instruction is a broadcast starting instruction or a broadcast closing instruction, correspondingly starting navigation broadcast or closing navigation broadcast according to the broadcast starting instruction or the broadcast closing instruction; when the control instruction is a volume adjusting instruction, adjusting the volume of the navigation broadcast according to the volume adjusting instruction; and when the control instruction is a base map adjusting instruction, adjusting the size of the base map according to the base map adjusting instruction.

The embodiment of the present disclosure further discloses a navigation control device based on the voice instruction, including: the state determining module is used for determining the current first navigation state of the user; the state switching module is used for responding to a voice control instruction of a user and switching from the first navigation state to a second navigation state; wherein, the voice control instruction is any one of the following instructions: starting a navigation instruction, specifying a destination navigation instruction, exiting the navigation instruction, retrieving an information point instruction and determining a sequence number; the first navigation state and the second navigation state are any one of the following states: a waiting state, an end point input state, an end point confirmation state, and a navigation on-way state.

Further, when the voice control instruction is a navigation start instruction, the state switching module is specifically configured to: switching from the wait state to the endpoint input state or the endpoint confirmation state; switching from the end point confirmation state to the navigation en-route state.

Further, the state switching module is specifically configured to: judging whether the user is configured with a pick-up driving order or not at present; switching from the waiting state to the terminal point input state when the user is not currently configured with a pick-up drive order; under the condition that the user is currently provided with a pick-up driving order, judging whether the pick-up driving order is in a pick-up driving state; when the pick-up driving order is in a pick-up driving state, taking a boarding point of the pick-up driving order as a navigation terminal, and switching from the waiting state to the terminal confirmation state; and when the pick-up driving order is not in a pick-up driving state, taking a get-off point of the pick-up driving order as a navigation terminal, and switching from the waiting state to the terminal confirmation state.

Further, when the voice control instruction is a specified end point navigation instruction, the state switching module is specifically configured to: switching from the waiting state to the end point input state or the end point confirmation state according to a navigation end point retrieval result; switching from the terminal confirmation state to the terminal input state or keeping the terminal confirmation state according to a navigation terminal retrieval result; and switching from the navigation on-way state to the terminal input state or the terminal confirmation state according to a navigation terminal retrieval result.

Further, when the voice control instruction is a retrieve information point instruction, the state switching module is specifically configured to: and switching from the end point input state to the end point confirmation state or keeping the end point input state according to the information point retrieval result.

Further, when the voice control instruction is a serial number explicit instruction, the state switching module is specifically configured to: under the condition that the end point corresponding to the serial number explicit instruction is successfully confirmed and the navigation is successfully started, switching from the end point confirmation state to the navigation en-route state; under the conditions that the end point corresponding to the clear sequence number instruction is successfully confirmed and the navigation is failed to be started, switching from the end point confirmation state to the waiting state; and when the end point corresponding to the clear serial number command fails to be confirmed, keeping the end point confirmation state.

Further, when the voice control instruction is an exit navigation instruction, the state switching module is specifically configured to: and switching to a waiting command state from any one of the end point confirmation state, the end point input state or the navigation en-route state.

Further, the voice control instruction further comprises at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjusting instruction and a base map adjusting instruction; the state switching module is specifically configured to: when the control instruction is a broadcast starting instruction or a broadcast closing instruction, correspondingly starting navigation broadcast or closing navigation broadcast according to the broadcast starting instruction or the broadcast closing instruction; when the control instruction is a volume adjusting instruction, adjusting the volume of the navigation broadcast according to the volume adjusting instruction; and when the control instruction is a base map adjusting instruction, adjusting the size of the base map according to the base map adjusting instruction.

The embodiment of the present disclosure further provides a storage medium storing a computer program, where the computer program is executed by a processor to implement the steps of the method in any one of the above technical solutions.

An embodiment of the present disclosure further provides an apparatus, at least including a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method in any one of the above technical solutions when executing the computer program on the memory.

The beneficial effects of this disclosed embodiment lie in: when a specific voice control instruction of a user is received, different instruction processing logics are executed under different navigation states in combination with the current navigation state of the user, and the current order condition can be combined to directly ensure that a car booking driver can directly enter the navigation state without additionally inputting a destination, so that additional operation is not required, and the use experience of the user can be improved.

Drawings

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

FIG. 1 is a flow chart of a navigation control method based on voice commands according to a first embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating switching between navigation states according to a first embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a decoupling strand of a navigation control device based on voice commands in a second embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present disclosure;

fig. 5 is a specific architecture and interaction diagram of a client and a server in a fourth embodiment of the disclosure.

Detailed Description

Various aspects and features of the disclosure are described herein with reference to the drawings.

It will be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

These and other characteristics of the present disclosure will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.

It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.

The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.

The first embodiment of the present disclosure provides a navigation control method based on a voice instruction, which is mainly used in a process of sending and receiving a car to a car booking driver, and a flow chart of the method is shown in fig. 1, and mainly includes steps S101 and S102:

s101, determining a current first navigation state of a user;

s102, responding to a voice control instruction of a user, and switching from the first navigation state to the second navigation state.

During driving, a net car reservation driver is usually in any one of the following states: the waiting state, the terminal point input state, the terminal point confirmation state and the navigation on-the-way state, namely the first navigation state and the second navigation state can be any one of the states. The waiting state is a state of waiting for a voice control instruction of a user in a non-navigation state; the terminal input state is a state for guiding a user to input a terminal under the condition that the user is not allocated to pick up a driving order and needs to enter navigation; the terminal confirmation state is a state of waiting for the user to confirm whether the terminal input by the voice command or the getting-on point and the getting-off point in the order are taken as navigation terminals or not after the user actively inputs the terminal through the voice command or is distributed to receive and send the driving order; the navigation en-route state refers to a state that navigation is started and a user voice control instruction can be received in the navigation process.

The voice control instruction mainly comprises any one of the following instructions: starting a navigation instruction, specifying a terminal navigation instruction, exiting the navigation instruction, retrieving an information point instruction and specifying a sequence number. After receiving an instruction sent by a user in a voice form, the voice can be converted into a text through the voice conversion service, so that a back-end server or a processor can obtain a voice control instruction actually sent by the user. Specifically, the navigation starting instruction corresponds to a user who wants to open or enter the navigation function currently, and often corresponds to voice instructions such as "start navigation", "enter navigation", "start navigation", and the like; the specified terminal navigation instruction corresponds to a specific terminal which a user wants to reach and wants to enter a navigation function, and often corresponds to voice instructions such as 'I want to go … …', 'navigate to … …' and the like; the navigation quitting instruction corresponds to the navigation function which the user wants to end or quit, and usually corresponds to voice instructions of 'ending navigation', 'navigation stopping' and the like; the information point searching instruction corresponds to a specific place which a user wants to reach and wants to enter a searching function, and often corresponds to voice instructions of 'helping me to check … … nearby', 'where the nearest … … is' and the like, wherein the place input by the user is usually an information point, such as a bank, a subway station, a convenience store, an office building and the like; the clear sequence number command corresponds to the sequence number information designated by the user, and usually corresponds to the voice commands of "… … th result" and "… … th item" and the like.

After receiving the voice of the user and converting the voice into a text instruction, determining a voice control instruction actually corresponding to the text instruction, acquiring a current first navigation state of the user at the moment, responding to the determined voice control instruction, and switching the current first navigation state to a second navigation state according to the specific content of the control instruction, wherein the first navigation state and the second navigation state can be any one of a waiting state, an end point input state, an end point confirmation state and a navigation on-way state, and the first navigation state and the second navigation state can be the same state or different states, and if the first navigation state and the second navigation state are the same, the current control instruction is proved not to have substantial influence on the navigation state. The switching logic between navigation states is described in detail below in conjunction with fig. 2.

Fig. 2 shows a schematic diagram of switching between navigation states, where a solid line frame corresponds to each navigation state, a dashed line frame corresponds to an intermediate state of transition between the navigation states, and the intermediate state refers to a process in which a system or software performs processing when responding to a control instruction, and a voice control instruction issued by a user cannot be responded in the processing process, but is switched to a different navigation state according to a specific processing condition; in the figure, the direction indicated by the arrow is the switching of the navigation state, the characters marked on the arrow are the currently received voice control instruction, and the characters marked by the middle brackets are the execution result of the middle state.

When a voice control instruction sent by a user is a navigation starting instruction, if the current navigation state (namely a first navigation state) of the user is a waiting state, in the process of entering navigation, switching the waiting state to a terminal point input state or a terminal point confirmation state (namely a second navigation state) according to the condition that whether the user is currently configured with a driving order receiving and sending; if the current navigation state of the user is an end point confirmation state, when a navigation starting instruction is received, the user determines that the current displayed place is the navigation end point, the navigation function is started, the navigation function is switched to the navigation en-route state under the condition that the navigation is successfully started, and the navigation starting operation can be repeatedly carried out if the navigation is failed to be started until the navigation is successfully started; in the end point input state and the navigation intermediate state, if the user issues a navigation start instruction, the instruction cannot affect the current navigation state, and therefore, the current navigation state is maintained (not shown in fig. 2).

Specifically, when the user is not configured to pick up a driving order currently, it is indicated that no specified destination needs to be reached by the driver user, and at the moment, the destination input state can be entered to receive the destination actively input by the driver user as a navigation destination; if the user is configured with a pick-up driving order currently, a navigation terminal can be automatically determined according to the current order state of the user, the navigation terminal is switched to a terminal confirmation state, and a driver determines whether to navigate according to the place in the current order; specifically, the order state mainly comprises a pickup state and a delivery state, wherein in the pickup state, a driver needs to drive to a boarding point selected by a passenger to pick up the passenger, and the boarding point of the passenger needs to be used as a navigation terminal point for navigation; after the passenger is received, the order state is switched to the driving sending state, namely the passenger is sent to the getting-off point which is desired to be reached, at this time, the getting-off point selected by the passenger is required to be used as a navigation terminal, and therefore, before the waiting state is switched to the terminal confirming state, automatic acquisition of different navigation terminals is required to be carried out according to whether a driver user is in the driving receiving state currently.

When a voice control instruction sent by a user is a specified end point navigation instruction, if the current navigation state of the user is a waiting state, searching a specified end point carried in the instruction when the specified end point navigation instruction is received, and entering an end point input state or an end point confirmation state according to a search result, specifically, under the condition of failed search, a system cannot determine the corresponding specified end point in the instruction, and switches to the end point input state at the moment and prompts the user to input the navigation end point again, and if the search is successful, the position corresponding to the specified end point is used as the navigation end point and switches to the end point confirmation state to wait for the confirmation of the user; if the current navigation state of the user is an end point confirmation state, when a specified end point navigation instruction is received, the current position to be confirmed by the user is not the position which the user actually wants to reach, at the moment, the specified end point carried in the instruction is searched again, and the end point input state or the end point confirmation state is entered according to the search result; if the user receives the navigation instruction of the specified destination under the condition that the current navigation state is the navigation in-process state, the situation that the user needs to change the driving destination temporarily or the current passenger who drives wants to change the destination without system software can occur, and the like, at the moment, the user correspondingly switches to the destination input state or the destination confirmation state according to the retrieval result of the specified destination carried in the instruction.

When a voice control instruction sent by a user is an information point retrieval instruction, if the current navigation state of the user is an end point input state, retrieving information points carried in the instruction, entering an end point input state or an end point confirmation state according to a retrieval result, specifically, under the condition that the retrieval is failed, a system cannot determine corresponding designated information points in the instruction, switching to the end point input state at the moment, prompting the user to input the information points or the end point again, if the retrieval is successful, presenting the retrieved information point result to the user, switching to the end point confirmation state, and waiting for the user to determine that the retrieval result is specifically used as the navigation end point through a serial number clear instruction; if the current navigation state of the user is the waiting state, the end point confirmation state, or the navigation way state, the specific operation and processing logic when receiving the search information point instruction is similar to the processing logic when the end point input state receives the search information point instruction, and will not be repeated here, and the response switching logic is not shown in fig. 2.

When the voice control instruction sent by the user is a serial number clear instruction, normally, after information points are successfully searched, the user selects a specific retrieval result as a navigation terminal in a terminal confirmation state, and at the moment, according to the specific serial number determined in the serial number clear instruction, under the condition that the terminal confirmation corresponding to the serial number is successful and the navigation is normally started, the terminal confirmation state is switched to a navigation on-way state; if the terminal point is confirmed successfully but the navigation is not started successfully, the navigation can be started repeatedly, under the condition that the navigation is started for a plurality of times continuously, the terminal point is switched from the terminal point confirmation state to the waiting state, the navigation start failure can be prompted to the user through characters or voice, and the software is recommended to be restarted or maintenance personnel are consulted; if the end point corresponding to the sequence number in the sequence number clear instruction fails to be confirmed, if three retrieval results are provided currently and the user selects the 'fifth result' in the control instruction, the system cannot confirm, and at the moment, the system can be kept in an end point confirmation state and waits for other control instructions sent by the user; in the waiting state, the end point input state, and the navigation intermediate state, if the user issues a clear serial number command, the command cannot affect the current navigation state, and therefore, the current navigation state may be kept unchanged (not shown in fig. 2).

The terminal confirming state, the terminal input state and the navigation on-the-way state all represent the state that the user is about to navigate or navigating, if the user sends out a navigation quitting instruction in any one of the three states, the user indicates that the user wants to stop navigating currently, and at the moment, the user can directly switch any one of the three states to the waiting state; if the user is currently in the waiting state, he does not actually perform any navigation-related operation, and if the exit navigation instruction is received at this time, the user can remain in the waiting state (not shown in fig. 2).

Further, the voice control instruction further comprises at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjusting instruction and a base map adjusting instruction, and is used for performing some basic operations of a user in the software using process. For example, in the navigation process, a user can control the navigation broadcast to be started or closed by sending a broadcast starting instruction or a broadcast closing instruction; or the volume of the navigation broadcast is adjusted through a volume adjusting instruction in any navigation state, such as operations of increasing sound, decreasing sound, muting and the like (not shown in fig. 2); or the size of the base map is adjusted through the base map adjusting instruction, such as operations (not shown in fig. 2) of adjusting the level of the base map to be maximum, adjusting the level of the base map to be minimum, enlarging the base map, reducing the base map, and the like are realized.

According to the method and the device, when a specific voice control instruction of a user is received, different instruction processing logics are executed under different navigation states in combination with the current navigation state of the user, and the current order condition can be combined to directly ensure that a car booking driver can directly enter the navigation state without additionally inputting a destination, so that additional operation is not required, and the use experience of the user can be improved.

A second embodiment of the present disclosure provides a navigation control device based on a voice instruction, which may be installed in a background server of a car booking software or a navigation software to perform information interaction with a user terminal used by a car booking driver, and a schematic structural diagram of the navigation control device is shown in fig. 3, and the navigation control device mainly includes a state determination module 10 and a state switching module 20, which are coupled to each other, where the state determination module 10 is mainly used to determine a current first navigation state of a user, and the state switching module 20 is mainly used to respond to a voice control instruction of the user to switch the first navigation state to a second navigation state.

During driving, a net car reservation driver is usually in any one of the following states: the waiting state, the terminal point input state, the terminal point confirmation state and the navigation on-the-way state, namely the first navigation state and the second navigation state can be any one of the states. The voice control instruction mainly comprises any one of the following instructions: starting a navigation instruction, specifying a terminal navigation instruction, exiting the navigation instruction, retrieving an information point instruction and specifying a sequence number. After the user terminal receives an instruction sent by a user in a voice form, the voice can be converted into a text through a voice conversion service at the user terminal, the text is sent to a back-end server for the back-end server or a processor to obtain a voice control instruction actually sent by the user, the instruction sent in the voice form can be directly sent to the back-end server by the user terminal, the back-end server performs voice conversion operation on characters, and the voice control instruction actually sent is determined according to the character correspondence.

After determining a voice control instruction sent by a user, the state determining module 10 obtains a current first navigation state of the user, and responds to the determined voice control instruction through the state switching module 20, and switches the current first navigation state to a second navigation state according to specific content of the control instruction, wherein the first navigation state and the second navigation state may be any one of a waiting state, an end point input state, an end point confirmation state, and a navigation en-route state, and the first navigation state and the second navigation state may be the same state or different states, and if the first navigation state and the second navigation state are the same, it is proved that the current control instruction does not substantially affect the navigation state. The switching logic between navigation states is described in detail below in conjunction with fig. 2.

When determining that the voice control instruction sent by the user is a navigation start instruction, if the current navigation state (i.e., the first navigation state) of the user is a waiting state, the state switching module 20 switches the waiting state to an end point input state or an end point confirmation state (i.e., the second navigation state) according to whether the user is currently configured with a driving order receiving and sending condition in the process of entering the navigation; if the current navigation state of the user is an end point confirmation state, when a navigation starting instruction is received, the user determines that the current displayed place is the navigation end point, the navigation function is started, the navigation function is switched to the navigation en-route state under the condition that the navigation is successfully started, and the navigation starting operation can be repeatedly carried out if the navigation is failed to be started until the navigation is successfully started; in the terminal input state and the navigation on-way state, if the user sends a navigation starting instruction, the instruction cannot affect the current navigation state, and therefore, the current navigation state is kept unchanged.

Specifically, when determining that the user is not configured to pick up the driving order currently, the state switching module 20 indicates that no specified destination needs to be reached by the driver user, and at this time, may enter a destination input state to receive the destination actively input by the driver user as a navigation destination; if the user is determined to be currently configured with the pick-up driving order, a navigation terminal can be automatically determined according to the current order state of the user, the navigation terminal is switched to a terminal confirmation state, and a driver determines whether to perform navigation according to the place in the current order; specifically, the order state mainly comprises a pickup state and a delivery state, wherein in the pickup state, a driver needs to drive to a boarding point selected by a passenger to pick up the passenger, and the boarding point of the passenger needs to be used as a navigation terminal point for navigation; after the passenger is received, the order state is switched to the driving sending state, namely the passenger is sent to the getting-off point which is desired to be reached, at this time, the getting-off point selected by the passenger is required to be used as a navigation terminal, and therefore, before the waiting state is switched to the terminal confirming state, automatic acquisition of different navigation terminals is required to be carried out according to whether a driver user is in the driving receiving state currently.

When determining that a voice control instruction sent by a user is a specified end point navigation instruction, if the current navigation state of the user is a waiting state, the state switching module 20 searches a specified end point carried in the instruction when receiving the specified end point navigation instruction, and enters an end point input state or an end point confirmation state according to a search result, specifically, under the condition that the search fails, the system cannot determine the corresponding specified end point in the instruction, and switches to the end point input state at the moment, prompts the user to input the navigation end point again, and if the search succeeds, the position corresponding to the specified end point is taken as the navigation end point, and switches to the end point confirmation state to wait for the confirmation of the user; if the current navigation state of the user is an end point confirmation state, when a specified end point navigation instruction is received, the current position to be confirmed by the user is not the position which the user actually wants to reach, at the moment, the specified end point carried in the instruction is searched again, and the end point input state or the end point confirmation state is entered according to the search result; if the user receives the navigation instruction of the specified destination under the condition that the current navigation state is the navigation in-process state, the situation that the user needs to change the driving destination temporarily or the current passenger who drives wants to change the destination without system software can occur, and the like, at the moment, the user correspondingly switches to the destination input state or the destination confirmation state according to the retrieval result of the specified destination carried in the instruction.

When determining that a voice control instruction sent by a user is a retrieval information point instruction, if the current navigation state of the user is an end point input state, the state switching module 20 performs retrieval of information points carried in the instruction, and enters an end point input state or an end point confirmation state according to a retrieval result, specifically, under the condition that the retrieval is failed, the system cannot determine a corresponding specified information point in the instruction, at this time, the system switches to the end point input state and prompts the user to input the information point or the end point again, if the retrieval is successful, the retrieved information point result is presented to the user, the system switches to the end point confirmation state, and the user waits for determining that the retrieval result is specifically used as the navigation end point through a serial number explicit instruction; if the current navigation state of the user is the waiting state, the end point confirmation state or the navigation way state, the specific operation and processing logic when the retrieval information point instruction is received is similar to the processing logic when the retrieval information point instruction is received in the end point input state, and repeated description is omitted here.

When the voice control instruction sent by the user is determined to be a serial number clear instruction, generally after the information point is successfully retrieved, the state switching module 20 selects a specific retrieval result as a navigation terminal in a terminal confirmation state and waits for the user to select the specific retrieval result as a navigation terminal, and at the moment, according to the specific serial number determined in the serial number clear instruction, under the conditions that the terminal confirmation corresponding to the serial number is successful and the navigation is normally started, the terminal confirmation state is switched to a navigation midway state; if the terminal point is confirmed successfully but the navigation is not started successfully, the navigation can be started repeatedly, under the condition that the navigation is started for a plurality of times continuously, the terminal point is switched from the terminal point confirmation state to the waiting state, the navigation start failure can be prompted to the user through characters or voice, and the software is recommended to be restarted or maintenance personnel are consulted; if the end point corresponding to the sequence number in the sequence number clear instruction fails to be confirmed, if three retrieval results are provided currently and the user selects the 'fifth result' in the control instruction, the system cannot confirm, and at the moment, the system can be kept in an end point confirmation state and waits for other control instructions sent by the user; in the waiting state, the terminal input state and the navigation on-way state, if the user sends a clear sequence number instruction, the instruction cannot influence the current navigation state, and therefore, the current navigation state is kept unchanged.

The terminal confirmation state, the terminal input state and the navigation on-way state all represent the states that the user is about to navigate or navigating, and in any one of the three states, if the user sends a navigation exit instruction, the user indicates that the user currently wants to stop navigating, and at this time, the state switching module 20 directly switches from any one of the three states to the waiting state; if the user is currently in the waiting state, the user does not actually perform any operation related to navigation, and if the user receives the navigation exiting instruction, the user is kept in the waiting state.

Further, the voice control instruction further includes at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjustment instruction, and a base map adjustment instruction, and is used for performing some basic operations of the user in the software using process, and the state switching module 20 may implement corresponding operations according to the above instructions. For example, in the navigation process, a user can control the navigation broadcast to be started or closed by sending a broadcast starting instruction or a broadcast closing instruction; or the volume of the navigation broadcast is adjusted through a volume adjusting instruction in any navigation state, so that the operations of sound increasing, sound reducing, muting and the like are realized; or the size of the base map is adjusted through the base map adjusting instruction, such as the operations of adjusting the level of the base map to be maximum, adjusting the level of the base map to be minimum, enlarging the base map, reducing the base map and the like are realized.

A third embodiment of the present disclosure provides a storage medium, which is a computer-readable medium storing a computer program that, when executed by a processor, implements the method provided in any of the embodiments of the present disclosure, including the following steps S11 and S12:

s11, determining the current first navigation state of the user;

and S12, responding to the voice control command of the user, and switching from the first navigation state to the second navigation state.

Specifically, the voice control instruction is any one of the following instructions: starting a navigation instruction, specifying a destination navigation instruction, exiting the navigation instruction, retrieving an information point instruction and determining a sequence number; the first navigation state and the second navigation state are any one of the following states: a waiting state, an end point input state, an end point confirmation state, and a navigation on-way state.

When the voice control instruction is a navigation starting instruction, the computer program is executed by the processor to switch from the first navigation state to the second navigation state according to the voice control instruction, and the processor specifically executes the following steps: switching from a waiting state to a destination input state or a destination confirmation state; and switching from the end point confirmation state to the navigation on-way state.

When the computer program is executed by the processor to switch from the waiting state to the end point input state or the end point confirmation state, the computer program is specifically executed by the processor to perform the following steps: judging whether a user is configured with a pick-up order or not at present; under the condition that a user is not configured with a pick-up driving order currently, switching from a waiting state to a terminal point input state; judging whether the pick-up driving order is in a pick-up state or not under the condition that the pick-up driving order is currently configured by a user; when the pick-up driving order is in a pick-up driving state, taking a boarding point of the pick-up driving order as a navigation terminal, and switching from a waiting state to a terminal confirmation state; and when the pick-up driving order is not in the pick-up driving state, taking the get-off point of the pick-up driving order as a navigation terminal, and switching from the waiting state to a terminal confirmation state.

When the voice control instruction is a specified end point navigation instruction, the computer program is executed by the processor to switch from the first navigation state to the second navigation state according to the voice control instruction, and the processor specifically executes the following steps: switching from a waiting state to a terminal input state or a terminal confirmation state according to a navigation terminal retrieval result; switching from the terminal confirmation state to the terminal input state or keeping the terminal confirmation state according to the navigation terminal retrieval result; and switching from the navigation on-way state to the end point input state or the end point confirmation state according to the navigation end point search result.

When the voice control instruction is a retrieval information point instruction, the computer program is executed by the processor to switch from the first navigation state to the second navigation state according to the voice control instruction, and the processor specifically executes the following steps: and switching from the end point input state to an end point confirmation state or keeping the end point input state according to the information point retrieval result.

When the voice control instruction is a serial number explicit instruction, the computer program is executed by the processor to switch from the first navigation state to the second navigation state according to the voice control instruction, and the processor specifically executes the following steps: under the condition that the end point corresponding to the clear order of the serial number is successfully confirmed and the navigation is successfully started, switching from the end point confirmation state to the navigation en-route state; under the conditions that the end point corresponding to the order with the definite sequence number is confirmed successfully and the navigation is started unsuccessfully, switching from the end point confirmation state to the waiting state; when the end point confirmation corresponding to the serial number clear command fails, the end point confirmation state is maintained.

When the voice control instruction is a navigation exit instruction, the computer program is executed by the processor to switch from the first navigation state to the second navigation state according to the voice control instruction, and the processor specifically executes the following steps: and switching to a command waiting state from any one of an end point confirmation state, an end point input state or a navigation on-the-way state.

The voice control instruction further comprises at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjusting instruction and a base map adjusting instruction; the computer program is further executable by the processor to perform the steps of: when the control instruction is a broadcast opening instruction or a broadcast closing instruction, correspondingly opening navigation broadcast or closing navigation broadcast according to the broadcast opening instruction or the broadcast closing instruction; when the control instruction is a volume adjusting instruction, adjusting the volume of the navigation broadcast according to the volume adjusting instruction; and when the control instruction is a base map adjusting instruction, adjusting the size of the base map according to the base map adjusting instruction.

A fourth embodiment of the present disclosure provides an apparatus, which may be used as a backend server of network appointment software or navigation software, and a schematic structural diagram of the apparatus may be as shown in fig. 4, where the apparatus at least includes a memory 100 and a processor 200, the memory 100 stores a computer program, and the processor 200, when executing the computer program on the memory 100, implements the method provided in any embodiment of the present disclosure. Illustratively, the electronic device computer program steps are as follows S21 and S22:

s21, determining the current first navigation state of the user;

and S22, responding to the voice control command of the user, and switching from the first navigation state to the second navigation state.

When the voice control instruction is a navigation starting instruction, the processor executes the following computer program when switching from the first navigation state to the second navigation state according to the voice control instruction stored in the execution memory: switching from a waiting state to a destination input state or a destination confirmation state; and switching from the end point confirmation state to the navigation on-way state.

When the processor executes the computer program stored in the memory to switch from the waiting state to the end point input state or the end point confirmation state, the following computer program is specifically executed: judging whether a user is configured with a pick-up order or not at present; under the condition that a user is not configured with a pick-up driving order currently, switching from a waiting state to a terminal point input state; judging whether the pick-up driving order is in a pick-up state or not under the condition that the pick-up driving order is currently configured by a user; when the pick-up driving order is in a pick-up driving state, taking a boarding point of the pick-up driving order as a navigation terminal, and switching from a waiting state to a terminal confirmation state; and when the pick-up driving order is not in the pick-up driving state, taking the get-off point of the pick-up driving order as a navigation terminal, and switching from the waiting state to a terminal confirmation state.

When the voice control instruction is a specified end point navigation instruction, the processor executes the following computer program when switching from the first navigation state to the second navigation state according to the voice control instruction stored in the memory: switching from a waiting state to a terminal input state or a terminal confirmation state according to a navigation terminal retrieval result; switching from the terminal confirmation state to the terminal input state or keeping the terminal confirmation state according to the navigation terminal retrieval result; and switching from the navigation on-way state to the end point input state or the end point confirmation state according to the navigation end point search result.

When the voice control instruction is a retrieval information point instruction, the processor executes the following computer program when the processor switches from the first navigation state to the second navigation state according to the voice control instruction stored in the execution memory: and switching from the end point input state to an end point confirmation state or keeping the end point input state according to the information point retrieval result.

When the voice control instruction is a serial number explicit instruction, the processor executes the following computer program when switching from the first navigation state to the second navigation state according to the voice control instruction stored in the execution memory: under the condition that the end point corresponding to the clear order of the serial number is successfully confirmed and the navigation is successfully started, switching from the end point confirmation state to the navigation en-route state; under the conditions that the end point corresponding to the order with the definite sequence number is confirmed successfully and the navigation is started unsuccessfully, switching from the end point confirmation state to the waiting state; when the end point confirmation corresponding to the serial number clear command fails, the end point confirmation state is maintained.

When the voice control instruction is a navigation exit instruction, the processor executes the following computer program when switching from the first navigation state to the second navigation state according to the voice control instruction stored in the execution memory: and switching to a command waiting state from any one of an end point confirmation state, an end point input state or a navigation on-the-way state.

Specifically, the sound control instruction further comprises at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjusting instruction and a base map adjusting instruction; the processor also executes the following computer program: when the control instruction is a broadcast opening instruction or a broadcast closing instruction, correspondingly opening navigation broadcast or closing navigation broadcast according to the broadcast opening instruction or the broadcast closing instruction; when the control instruction is a volume adjusting instruction, adjusting the volume of the navigation broadcast according to the volume adjusting instruction; and when the control instruction is a base map adjusting instruction, adjusting the size of the base map according to the base map adjusting instruction.

Fig. 5 shows a specific architecture and interaction diagram of the client and the server in actual use. As shown in fig. 5, the user side mainly includes a voice interaction component for receiving the voice of the user, feeding back the voice broadcast, text prompt and other contents of the server side, and also includes a voice assistant component for implementing the functions of voice conversion, instruction disassembly, and invoking the navigation component; the service end mainly comprises a voice recognition service layer, a voice assistant service layer, an instruction recognition service layer, a retrieval service layer and a navigation service layer, wherein the voice recognition service layer is used for providing voice text conversion service for a voice assistant component of the user end, the voice assistant service layer is mainly used for carrying out state acquisition and decision of user end execution operation, namely, switching logic among navigation states shown in fig. 2 in the first embodiment of the disclosure is realized, the instruction recognition service layer is mainly used for corresponding the text converted by voice to a specific voice control instruction, the retrieval service layer is used for providing retrieval service, and the navigation service layer is used for serving the navigation component of the user end and is used for realizing a specific navigation function.

In some embodiments, the clients, servers may communicate using any currently known or future developed network protocol, such as HTTP (HyperText transfer protocol), and may be interconnected with any form or medium of digital data communication (e.g., a communications network). Examples of communication networks include a Local Area Network (LAN), a Wide Area Network (WAN), the internet (e.g., the internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed network.

The storage medium may be included in the electronic device; or may exist separately without being assembled into the electronic device.

The storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: acquiring at least two internet protocol addresses; sending a node evaluation request comprising at least two internet protocol addresses to node evaluation equipment, wherein the node evaluation equipment selects the internet protocol addresses from the at least two internet protocol addresses and returns the internet protocol addresses; receiving an internet protocol address returned by the node evaluation equipment; wherein the obtained internet protocol address indicates an edge node in the content distribution network.

Alternatively, the storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: receiving a node evaluation request comprising at least two internet protocol addresses; selecting an internet protocol address from at least two internet protocol addresses; returning the selected internet protocol address; wherein the received internet protocol address indicates an edge node in the content distribution network.

Computer program code for carrying out operations for the present disclosure may be written in any combination of one or more programming languages, including but not limited to an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

It should be noted that the storage media described above in this disclosure can be computer readable signal media or computer readable storage media or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any storage medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present disclosure may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.

The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), systems on a chip (SOCs), Complex Programmable Logic Devices (CPLDs), and the like.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents does not depart from the spirit of the disclosure. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.

Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.

Claims

1. A navigation control method based on voice instructions is characterized by comprising the following steps:

determining a current first navigation state of a user;

responding to a voice control instruction of a user, and switching from the first navigation state to a second navigation state;

wherein, the voice control instruction is any one of the following instructions: starting a navigation instruction, specifying a destination navigation instruction, exiting the navigation instruction, retrieving an information point instruction and determining a sequence number;

the first navigation state and the second navigation state are any one of the following states: a waiting state, an end point input state, an end point confirmation state, and a navigation on-way state.

2. The navigation control method according to claim 1, wherein when the voice control instruction is a navigation start instruction, the switching from the first navigation state to a second navigation state according to the voice control instruction includes:

switching from the wait state to the endpoint input state or the endpoint confirmation state;

switching from the end point confirmation state to the navigation en-route state.

3. The navigation control method according to claim 2, wherein the switching from the waiting state to the end point input state or the end point confirmation state includes:

judging whether the user is configured with a pick-up driving order or not at present;

switching from the waiting state to the terminal point input state when the user is not currently configured with a pick-up drive order;

under the condition that the user is currently provided with a pick-up driving order, judging whether the pick-up driving order is in a pick-up driving state;

when the pick-up driving order is in a pick-up driving state, taking a boarding point of the pick-up driving order as a navigation terminal, and switching from the waiting state to the terminal confirmation state;

and when the pick-up driving order is not in a pick-up driving state, taking a get-off point of the pick-up driving order as a navigation terminal, and switching from the waiting state to the terminal confirmation state.

4. The navigation control method according to claim 1, wherein when the voice control instruction is a destination-specified navigation instruction, the switching from the first navigation state to a second navigation state according to the voice control instruction comprises:

switching from the waiting state to the end point input state or the end point confirmation state according to a navigation end point retrieval result;

switching from the terminal confirmation state to the terminal input state or keeping the terminal confirmation state according to a navigation terminal retrieval result;

and switching from the navigation on-way state to the terminal input state or the terminal confirmation state according to a navigation terminal retrieval result.

5. The navigation control method according to claim 1, wherein when the voice control command is a retrieve information point command, the switching from the first navigation state to a second navigation state according to the voice control command comprises:

and switching from the end point input state to the end point confirmation state or keeping the end point input state according to the information point retrieval result.

6. The navigation control method according to claim 5, wherein when the voice control command is a serial number explicit command, the switching from the first navigation state to the second navigation state according to the voice control command comprises:

under the condition that the end point corresponding to the serial number explicit instruction is successfully confirmed and the navigation is successfully started, switching from the end point confirmation state to the navigation en-route state;

under the conditions that the end point corresponding to the clear sequence number instruction is successfully confirmed and the navigation is failed to be started, switching from the end point confirmation state to the waiting state;

and when the end point corresponding to the clear serial number command fails to be confirmed, keeping the end point confirmation state.

7. The navigation control method according to claim 1, wherein when the voice control instruction is an exit navigation instruction, the switching from the first navigation state to a second navigation state according to the voice control instruction comprises:

and switching to a waiting command state from any one of the end point confirmation state, the end point input state or the navigation en-route state.

8. The navigation control method according to claim 1, wherein the voice control instruction further comprises at least one of a broadcast opening instruction, a broadcast closing instruction, a volume adjustment instruction, and a base map adjustment instruction; wherein the content of the first and second substances,

when the control instruction is a broadcast starting instruction or a broadcast closing instruction, correspondingly starting navigation broadcast or closing navigation broadcast according to the broadcast starting instruction or the broadcast closing instruction;

when the control instruction is a volume adjusting instruction, adjusting the volume of the navigation broadcast according to the volume adjusting instruction;

and when the control instruction is a base map adjusting instruction, adjusting the size of the base map according to the base map adjusting instruction.

9. A navigation control device based on a voice command, comprising:

the state determining module is used for determining the current first navigation state of the user;

the state switching module is used for responding to a voice control instruction of a user and switching from the first navigation state to a second navigation state;

10. The navigation control device according to claim 9, wherein when the voice control instruction is a navigation start instruction, the state switching module is specifically configured to:

11. The navigation control device of claim 10, wherein the state switching module is specifically configured to:

12. The navigation control device according to claim 9, wherein when the voice control instruction is a specified destination navigation instruction, the state switching module is specifically configured to:

13. The navigation control device of claim 9, wherein when the voice control command is a retrieve information point command, the state switching module is specifically configured to:

14. The navigation control device of claim 15, wherein when the voice control command is a serial number explicit command, the state switching module is specifically configured to:

15. The navigation control device according to claim 9, wherein when the voice control instruction is an exit navigation instruction, the state switching module is specifically configured to:

16. The navigation control device of claim 9, wherein the voice control instructions further comprise at least one of an on-broadcast instruction, an off-broadcast instruction, a volume adjustment instruction, and a base map adjustment instruction; the state switching module is specifically configured to:

17. A storage medium storing a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 8 when executed by a processor.

18. An apparatus comprising at least a memory, a processor, the memory having a computer program stored thereon, wherein the processor, when executing the computer program on the memory, performs the steps of the method of any one of claims 1 to 8.