CN102548024B - Life detection method and life detection device for post-disaster research and rescue - Google Patents
Life detection method and life detection device for post-disaster research and rescue Download PDFInfo
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Abstract
The invention discloses a life detection method for post-disaster research and rescue, which belongs to the technical field of post-disaster research and rescue life detection. The method includes that a life detection device monitors wireless environment and judges whether public mobile communication network signals exist or not. If the signals exist, the life detection device transfers communication signals between a public communication network base station and a mobile phone. If the signals do not exist, the life detection device transmits control signals, induces the mobile phone receiving the control signals to conduct register access, receives signals of the register access and registers information of the mobile phone. The life detection device is further provided. The life detection method can finish a life detection process by monitoring the wireless environment through the life detection device no matter the public mobile communication network signals exist or not, guarantees smooth development of detection work, effectively resolves the problem of effects on disaster area mobile communication caused by the fact that a life detection network can not be compatible with the public mobile communication network.
Description
Technical field
The present invention relates to post-disaster search and rescue human life detection field, particularly a kind of post-disaster search and rescue life detection method and life detecting device.
Background technology
Natural calamity has moment generation, destroys the features such as violent, monitoring and prediction is difficult, social influence is far-reaching, and for example, the disasters such as destructive strong earthquake, landslide, cause huge harm and loss to national economic development and people life property safety.Both at home and abroad natural calamity example many times proves, after calamity, for disaster mitigation, loss is extremely important emergency relief technical merit.
China is also very weak at disaster emergency relief technical elements at present, mainly relies on manpower, rescue dogs and life detecting device to carry out life detection, with looking for survivors.Manpower and rescue dogs detection efficient are lower, and affected seriously by surrounding enviroment.Existing life detecting device all exist be subject to site environment affect compared with large, search volume scope is little, search speed slow, lack the shortcomings such as quick stationkeeping ability, can not meet the demand that the trapped personnel of ruins pile things on is searched and rescued fast after calamity far away on a large scale.
In order to solve in prior art life detecting device, to be subject to environmental impact serious, causes the low problem of search efficiency, and after a kind of calamity based on mobile phone, life detection method and system is suggested.As shown in Figure 1, this system is comprised of mobile phone (mobile terminal) and some life detecting devices (base station).Occur after the condition of a disaster, bring out trapped personnel mobile phone (mobile terminal) register access by life detecting device (base station) transmission message, the signal that search life detecting device sends is set up urgent link link.Life detecting device, according to distress signal, is determined mobile terminal and is carried out positioning action, finally determines the position of trapped personnel, effectively sues and labours.
In realizing process of the present invention, inventor finds that prior art at least exists following problem:
Based on bringing out the life detection net that life detecting device forms after the calamity of mobile telephone registration, be a kind of pseudo-mobile radio communication, although can complete the coordinate detection function proper communication function of mobile phone, be difficult to be guaranteed.And mobile phone is while being in communications status, can only keep communicate by letter with current base station, so life detection net and public mobile communication network (public network) exist certain mutex relation also to cause thus series of problems.And, because the mutex relation of life detection net and public mobile communication network will cause the problems such as descending interference increases the weight of, handoff failure, directly affect the proper communication of disaster area mobile phone.Under the environment that public mobile communication network is not paralysed or emergency communication net has been built after calamity, the scheme still not addressing this problem in prior art.
Summary of the invention
In order to solve in prior art the problem that cannot compatible affect the normal mobile communication in disaster area due to life detection net and public mobile communication network, the embodiment of the present invention provides a kind of post-disaster search and rescue life detection method and life detecting device.Described technical scheme is as follows:
A post-disaster search and rescue life detection method, described method comprises:
Life detecting device monitoring wireless environment, judges whether to exist public mobile communication network wireless signal;
If had, described life detecting device forwards the signal of communication between described public mobile communication network base station and mobile phone;
If nothing, described life detecting device transmits control signal, and brings out the mobile phone initiation registration access that receives described control signal, receives the signal of described registration access, and registers the information of described mobile phone.
Described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device transmits control signal, and brings out the mobile phone initiation registration access that receives described control signal; Receive the signal of described registration access, register the information of described mobile phone, and the signal that forwards this registration access is to described public mobile communication network base station.
Described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device amplifies and forwards the control signal of described public mobile communication network base station transmitting, brings out the top layer mobile phone initiation registration access that receives described control signal; Receive the signal of described registration access, register the information of described top layer mobile phone, and the signal that forwards this registration access is to described public mobile communication network base station.
Described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device receives and the forward link signal of the described public mobile communication network base station of decoding, and realizes and the synchronizeing of described public mobile communication network base station.
Described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device amplifies and forwards the signal of communication between described public mobile communication network base station and mobile phone.
Described life detecting device forwards the signal of communication between described public mobile communication network base station and mobile phone, comprising:
Described life detecting device search obtains the described public mobile communication network base station that signal is the strongest, and forwards the signal of communication between described public mobile communication network base station and mobile phone.
A life detecting device, this device comprises wireless monitor unit, control signal unit, retransmission unit and registration access unit, wherein,
Described wireless monitor unit, for monitoring wireless environment, judges whether to exist public mobile communication network wireless signal;
Described control signal unit, for generating control signal and sending;
Described retransmission unit, for forwarding the signal of communication between described public mobile communication network base station and mobile phone;
Described registration access unit, for receiving the signal of the registration access of mobile phone initiation, and registers the information of described mobile phone.
Described retransmission unit further comprises Forwards Forwarding subelement and the reverse subelement that forwards, wherein,
Described Forwards Forwarding subelement, for receiving and forward the signal of communication of described public mobile communication network base station at forward link;
Described reverse forwarding subelement, for receiving and forward the signal of communication of described mobile phone at reverse link.
Described retransmission unit further comprises amplification subelement, for amplifying the signal of communication between described public mobile communication network base station and mobile phone.
Described retransmission unit further comprises synchronous subelement, for synchronizeing with described public mobile communication network base station.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The embodiment of the present invention is the monitoring to wireless environment by life detecting device, in the situation that public mobile communication network has signal, can coordinate with it detecting function and not affect mobile phone proper communication.The in the situation that of public mobile communication network no signal, can complete independently detecting function, to guarantee that search and rescue process steadily carries out in order.Thereby realized the fusion of life detecting device and public mobile communication network with compatible, no matter public mobile communication network has no signal all can complete life detection process, ensure carrying out smoothly of detection operations, effectively solved the problem that cannot compatible affect the normal mobile communication in disaster area due to life detection net and public mobile communication network.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is life-detection system schematic diagram after the calamity based on mobile phone in prior art;
Fig. 2 is the post-disaster search and rescue life detection Method And Principle flow chart that the embodiment of the present invention 1 provides;
Fig. 3 is the life detecting device structural representation that the embodiment of the present invention 3 provides;
Fig. 4 is life detecting device repeating unit 300 structural representations that the embodiment of the present invention 4 provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
After the natural calamity such as earthquake occurs, in the ruins that heavy construction is collapsed, have a large amount of personnel stranded or buried, the public mobile communication network in disaster area is likely paralysed, and also may not paralyse or can realize emergency communication through repairing.In this case, life detecting device is when carrying out life detection, because the signal of life detecting device is more intense, can produce serious interference with the signal of public mobile communication network base station, cause mobile phone to communicate with public mobile communication network base station.This interference also can impact the process of life detection.When work in life detecting device (detection network base station) and public mobile communication network base station simultaneously, mobile phone is determined main serving BS according to the pilot channel Ec/Io of public mobile communication network base station and life detecting device forward link.Conventionally life detecting device is in order to possess good search and rescue ability, and forward pilot power is large compared with ordinary base station, and therefore generally, handset-selected life detecting device is the main base station that takes.Yet life detecting device does not possess proper communication function, the proper communication that this has directly affected local mobile phone, affects rescue work.Because existing CDMA mobile communication system is self-interference system, the public same frequency range of life detecting device and public mobile communication network base station down channel.When mobile phone carries out standby or talking state with Wei Zhufu base station, public mobile communication network base station, to cause mobile phone when receiving public mobile communication network base station down message, to be subject to the interference of life detecting device downstream signal, when serious, can cause cannot proper communication.
The scheme principle that the embodiment of the present invention provides is as follows: in the situation that disaster causes local public mobile communication network paralysis and emergency communication net not yet to set up, life detecting device sends voluntarily forward link signal (pilot signal, synchronizing signal and system message etc.) and initiates registration and then obtain its position and user profile in order to bring out mobile phone.Under disaster does not cause situation that public mobile communication network paralysis or emergency communication net set up, detection network base station is transmitted signal and enter compatible state no longer voluntarily: at forward link, receive and the forward link signal realization of the public mobile communication network base station of decoding and synchronizeing of public mobile communication network base station, meanwhile forward link signal amplified and be transmitted to the mobile phone in the deep layer of ruins, bringing out it and initiate registration.At reverse link, receive and the registration message of decoding obtains mobile phone location and user profile, meanwhile registering signal amplified and be transmitted to public mobile communication network base station to realize communicating by letter of mobile phone and public mobile communication network base station.
The embodiment of the present invention is based on life detection method and system after a kind of calamity based on mobile phone, detection base station in the embodiment of the present invention can be the life detecting device in the life detection method based on mobile phone, can be also other signal generation apparatus with corresponding function.
Embodiment 1
The post-disaster search and rescue life detection method that the embodiment of the present invention 1 provides specifically as shown in Figure 2, comprises the steps:
Step 10, life detecting device monitoring wireless environment, judges whether to exist public mobile communication network wireless signal.
The life detecting device that the embodiment of the present invention provides, be applicable to life-detection system as shown in Figure 1, its basic operation principle is the operational mode of life detecting device simulation public mobile communication network base station, forward link control channel in public mobile communication network base station transmits control signal, bring out the mobile phone initiation registration access of receiving control signal, the information of registration mobile phone.
Because the operation basic principle of life detecting device and public mobile communication network base station is basic identical, so life detecting device possesses the function of public mobile communication network base station.Here, life detecting device need to be monitored the wireless environment in region to be detected, and whether judgement exists the wireless signal of public mobile communication network in this region, namely judges whether public mobile communication network is still in operation in this region.
Step 20, if there is public mobile communication network wireless signal, life detecting device forwards the signal of communication between public mobile communication network base station and mobile phone.
If life detecting device monitors region to be detected and has public mobile communication network wireless signal, illustrate that the public mobile communication network in this region is also in normal operation, mobile phone in ruins can be got in touch by public mobile communication network and the external world, thereby is searched and rescued.And mobile phone is also indispensable by public mobile communication network with extraneous contacting, thereby, communicating by letter between mobile phone and public mobile communication network can not be destroyed.Life detecting device just need to forward the signal of communication between public mobile communication network and mobile phone.
Especially, life detecting device, in order effectively to forward the signal of communication between public mobile communication network and mobile phone, need to be determined the best base station of signal in public mobile communication network, and forward the signal of communication between this base station and mobile phone.In general, life detecting device search wireless environment, the power of each base station pilot signals etc. in the public mobile communication network receiving by measurement, can the strongest base station of decision signal.
Especially, because the wireless environment in disaster area is very complicated, be embedded in mobile phone under ruins probably because the decay of wireless signal and other interference etc. are former thereby cannot get in touch with public mobile communication network base station.Life detecting device forwards the signal of communication of public mobile communication network base station, can utilize the larger feature of the general power ratio of life detecting device, makes the mobile phone that is trapped in ruins deep layer also can receive the signal of communication of public mobile communication network base station.Meanwhile, life detecting device can also be transmitted to public mobile communication network base station by the signal of deep layer mobile phone, improves the efficiency of searching and rescuing.
Especially, life detecting device is in the signal of communication forwarding between public mobile communication network base station and mobile phone, can amplify these signals, improve the power of these signals of communication, so that ruins more the mobile phone of the trapped personnel of deep layer can be detected, and set up and to contact with public mobile communication network base station.
Especially, life detecting device not only can forward the signal of communication between public mobile communication network base station and mobile phone, can also forward the control signal that public mobile communication network base station issues, then the mobile phone that receives this control signal is initiated registration access, life detecting device is transmitted to public mobile communication network base station equally, like this, assist public mobile communication network base station to complete the process of life detection.
Especially, life detecting device can transmit control signal voluntarily, the mobile phone initiation registration access of control signal is received in induction, these registration access signals is transmitted to public mobile communication network base station simultaneously, and assistance public mobile communication network base station completes the process of life detection.
Especially, life detecting device is when forwarding mobile phone sends to the signal of public mobile communication network base station, simultaneously by the information storage of this mobile phone, the information of registration mobile phone, safeguard voluntarily the information of the mobile phone detecting, and pass through the particular location to this mobile phone calculating, thereby complete the process of life detection.
Especially, life detecting device will forward the signal of communication between public mobile communication network base station and mobile phone, need to set up synchronized relation with public mobile communication network base station, this just needs life detection attaching to receive and the forward link signal of the public mobile communication network base station of decoding, and realizes and the synchronizeing of described public mobile communication network base station.
The life detecting device similarly here is more a repeater, complete the function that is similar to existing wireless signal repeater, can forward and amplify the signal of communication between public mobile communication network base station and mobile phone, thereby the scope that the public mobile communication network base station expanding covers, has improved the efficiency of searching and rescuing.
Step 30, if without public mobile communication network wireless signal, life detecting device transmits control signal, and brings out the mobile phone initiation registration access that receives control signal, receives the signal that registration accesses, and registers the information of mobile phone.
If life detecting device does not monitor the wireless signal of public mobile communication network in region to be detected, illustrate that public mobile communication network damages, emergency communication is not also set up.Now, life detecting device independently starts the process of life detection.In concrete process, life detecting device transmits control signal, and brings out the mobile phone receiving and initiates registration access, and receive these registration access signals, the information of registration mobile phone.Concrete, can a plurality of life detecting device networkings, the different registration access signal of same mobile phone that utilizes a plurality of life detecting devices to receive, by calculating these time differences of registering access signals and intensity difference etc., this mobile phone is positioned, thereby obtain the definite position of this mobile phone, conveniently carry out search-and-rescue work.
Especially, stranded mobile phone, after receiving the control signal of life detecting device transmission, is initiated registration access, sends and registers access signal; Life detecting device receives registration access signal, therefrom resolves information the registration of mobile phone.
Embodiment 2
In the scheme that the embodiment of the present invention 2 provides, first life detecting device monitors the wireless network environment in region to be detected, if this region does not have public mobile communication network signal, life detecting device sends voluntarily forward link signal (pilot signal, synchronizing signal and system message etc.) and initiates registration access in order to bring out mobile phone, and then obtains mobile phone location and user profile.If there is public mobile communication network signal in this region, life detecting device enters compatible state, decoding public mobile communication network base station forward link signal, and realize and synchronizeing with public mobile communication network base station, the mobile phone that sends one " registration request control information " control top layer, ruins in paging channel is initiated registration again.Here why to require top layer mobile phone again to initiate registration access, because before life detecting device starts to survey, presumable top layer mobile phone has completed with the registration access of public mobile communication network base station and has no longer responded life detecting device, thereby may cause that life detecting device omitted the search-and-rescue work of part mobile phone.Life detecting device is initiated after registration access at mobile phone, and the registration access message of decoding reverse link is obtained top layer mobile phone location and user profile.Then life detecting device amplifies public mobile communication network base station forward link signal in order to bring out the mobile phone initiation registration access that is embedded in ruins deep layer, the registration access message of decoding reverse link is obtained deep layer mobile phone location and user profile, after registration message being amplified, issues public mobile communication network base station simultaneously.
In this process, first life detecting device forwards public mobile communication network base station signal with normal power, brings out top layer mobile phone and initiates registration access, completes the registration location of top layer mobile phone.Then amplify the signal of public mobile communication network base station, bring out deep layer mobile phone and initiate registration access, thus the registration location that completes deep layer mobile phone.
Especially, in the embodiment of the present invention, the control signal that life detecting device produces is exactly that forward link in public mobile communication network base station sends a control signal in fact, identical with the control signal of common public mobile communication network base station transmission.Mobile phone, after receiving this control signal, is understood the process that launch position upgrades, thereby initiatively gets in touch with base station or life detecting device, and this process is exactly the registration access procedure of mobile phone.Thereby, in the embodiment of the present invention, not needing mobile phone to do any change, existing mobile phone all can be realized the process of post-disaster search and rescue life detection.
Embodiment 3
As shown in Figure 3, the life detecting device that the embodiment of the present invention 3 provides comprises wireless monitor unit 100, control signal unit 200, retransmission unit 300 and registration access unit 400, specific as follows:
Wireless monitor unit 100, for monitoring wireless environment, judges whether to exist public mobile communication network wireless signal.
Control signal unit 200, for generating control signal and sending.
The control signal unit 200 here, brings out for generating the control signal that mobile phone is initiated registration access, and sends.General, this control signal is exactly the control signal that life detecting device sends in forward link control channel, such as pilot signal, synchronizing signal and system message etc., mobile phone receives after these message, can initiate the process that a position is upgraded, thereby initiatively get in touch with life detecting device, complete access enrollment process.
Retransmission unit 300, for forwarding the signal of communication between public mobile communication network base station and mobile phone.
Retransmission unit 300, for completing the signal of communication between public mobile communication network base station and mobile phone, receives the signal of public mobile communication network base station and forwards at forward link, at reverse link, receives the signal of mobile phone and forwards.
Registration access unit 400, for receiving the signal of the registration access of mobile phone initiation, and registers the information of mobile phone.
Registration access unit 400, for when initiating registration access at mobile phone, receives this registration access signal, and registers the relevant information of mobile phone, utilizes these information, can calculate the position of mobile phone, completes position fixing process.
Embodiment 4
As shown in Figure 4, the retransmission unit 300 in above-described embodiment 3 further comprises Forwards Forwarding subelement 301, oppositely forwards subelement 302, wherein,
Forwards Forwarding subelement 301, for receiving and forward the signal of communication of public mobile communication network base station at forward link.
Oppositely forward subelement 302, for receive and forward the signal of communication of mobile phone at reverse link.
Preferably, above-mentioned retransmission unit 300 further comprises amplification subelement 303, for amplifying the signal of communication between public mobile communication network base station and mobile phone.
Amplification subelement 303, by Forwards Forwarding subelement 301 with after the signal amplification that oppositely forwarding subelement 302 receives, is forwarding through Forwards Forwarding subelement 301 and the reverse subelement 302 that forwards.
Preferably, above-mentioned retransmission unit 300 further comprises synchronous subelement 304, for synchronizeing with public mobile communication network base station.
Here, synchronous subelement 304, for the control signal on the public mobile communication network base station forward link receiving through Forwards Forwarding subelement 301, is realized and being synchronizeed with public mobile communication network base station by the synchronizing signal in control signal.
Especially, the life detecting device that the embodiment of the present invention 3 and embodiment 4 provide can be applied in scheme that above-described embodiment 1 and embodiment 2 provide.
To sum up, each embodiment of the present invention monitoring to wireless environment by life detecting device, in the situation that public mobile communication network has signal, can coordinate with it detecting function and not affect mobile phone proper communication.The in the situation that of public mobile communication network no signal, can complete independently detecting function, to guarantee that search and rescue process steadily carries out in order.Thereby realized the fusion of life detecting device and public mobile communication network with compatible, realized no matter public mobile communication network has no signal all can complete life detection process, ensure carrying out smoothly of detection operations, effectively solved the problem that cannot compatible affect the normal mobile communication in disaster area due to life detection net and public mobile communication network.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a post-disaster search and rescue life detection method, is characterized in that, described method comprises:
Life detecting device monitoring wireless environment, judges whether to exist public mobile communication network wireless signal;
If had, described life detecting device forwards the signal of communication between described public mobile communication network base station and mobile phone;
If nothing, described life detecting device transmits control signal, and brings out the mobile phone initiation registration access that receives described control signal, receives the signal of described registration access, and registers the information of described mobile phone.
2. the method for claim 1, is characterized in that, described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device transmits control signal, and brings out the mobile phone initiation registration access that receives described control signal; Receive the signal of described registration access, register the information of described mobile phone, and the signal that forwards this registration access is to described public mobile communication network base station.
3. the method for claim 1, is characterized in that, described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device amplifies and forwards the control signal of described public mobile communication network base station transmitting, brings out the top layer mobile phone initiation registration access that receives described control signal; Receive the signal of described registration access, register the information of described top layer mobile phone, and the signal that forwards this registration access is to described public mobile communication network base station.
4. the method for claim 1, is characterized in that, described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device receives and the forward link signal of the described public mobile communication network base station of decoding, and realizes and the synchronizeing of described public mobile communication network base station.
5. the method as described in as arbitrary in claim 1～4, is characterized in that, described life detecting device, when judgement exists described public mobile communication network wireless signal, also comprises:
Described life detecting device amplifies and forwards the signal of communication between described public mobile communication network base station and mobile phone.
6. the method for claim 1, is characterized in that, described life detecting device forwards the signal of communication between described public mobile communication network base station and mobile phone, comprising:
Described life detecting device search obtains the described public mobile communication network base station that signal is the strongest, and forwards the signal of communication between described public mobile communication network base station and mobile phone.
7. a life detecting device, is characterized in that, this device comprises wireless monitor unit, control signal unit, retransmission unit and registration access unit, wherein,
Described wireless monitor unit, for monitoring wireless environment, judges whether to exist public mobile communication network wireless signal;
Described control signal unit, for generating control signal and sending;
Described retransmission unit, for when there is public mobile communication network wireless signal, forwards the signal of communication between described public mobile communication network base station and mobile phone;
Described registration access unit, for receiving the signal of the registration access of mobile phone initiation, and registers the information of described mobile phone.
8. device as claimed in claim 7, is characterized in that, described retransmission unit further comprises Forwards Forwarding subelement and the reverse subelement that forwards, wherein,
Described Forwards Forwarding subelement, for receiving and forward the signal of communication of described public mobile communication network base station at forward link;
Described reverse forwarding subelement, for receiving and forward the signal of communication of described mobile phone at reverse link.
9. install as claimed in claim 7 or 8, it is characterized in that, described retransmission unit further comprises amplification subelement, for amplifying the signal of communication between described public mobile communication network base station and mobile phone.
10. device as claimed in claim 7, is characterized in that, described retransmission unit further comprises synchronous subelement, for synchronizeing with described public mobile communication network base station.
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| CN105657030B (en) * | 2016-01-29 | 2019-07-09 | 电子科技大学 | Post-disaster data collection and transmission method |
| CN106332275A (en) * | 2016-08-23 | 2017-01-11 | 中国联合网络通信集团有限公司 | Positioning method and device |
| CN106680429A (en) * | 2016-12-26 | 2017-05-17 | 江南大学 | Life detection device and application thereof |
| CN106658453A (en) * | 2017-02-24 | 2017-05-10 | 杨波 | Disaster area life rescue system and method based on mobile communication small base station |
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| CN102548024A (en) | 2012-07-04 |
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