CN102256013A - Mobile terminal and communication method thereof applied to nuclear power plant - Google Patents
Mobile terminal and communication method thereof applied to nuclear power plant Download PDFInfo
- Publication number
- CN102256013A CN102256013A CN2011101882000A CN201110188200A CN102256013A CN 102256013 A CN102256013 A CN 102256013A CN 2011101882000 A CN2011101882000 A CN 2011101882000A CN 201110188200 A CN201110188200 A CN 201110188200A CN 102256013 A CN102256013 A CN 102256013A
- Authority
- CN
- China
- Prior art keywords
- pilot signal
- portable terminal
- special
- base station
- nuclear power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a mobile terminal and a communication method thereof applied to a nuclear power plant. The method comprises that: the mobile terminal searches for a pilot signal and compares the acquired pilot signal with a special pilot signal stored by the mobile terminal, wherein the special pilot signal is the pilot signal transmitted by a special base station of which signal coverage comprises a part of or all the nuclear power plant; and if the pilot signal acquired by the mobile terminal is the special pilot signal, the mobile terminal enters a static state, regulates own transmission power to be 0, receives a signal from the special base station, and does not transmit any signal. The mobile terminal applied to the nuclear power plant can be used in the nuclear power plant as the substitute of a pager, overcomes the shortcomings of the pager, and has high communication security due to the adoption of relatively more security policies.
Description
Technical field
The present invention relates to a kind of field of mobile communication, relate in particular to a kind of portable terminal and means of communication thereof that are applicable to nuclear power station plant area.
Background technology
Electromagnetic interference is meant by the interference of electromagnet source spatial transmission to sensitive equipment.In this place high of nuclear power station, especially need to avoid sensitive equipment to be subjected to electromagnetic interference to the equipment operation security requirement.FESSENHEIM power station, TIHANGE power station and GRAVELVVES power station in France, Ceng Yin uses wireless mobile transmitter and receiver to cause several scram incidents in the factory building of power station.Its reason is: when wireless mobile transmitter is directly adjacent to control electronics (as equipment such as transmitter, adjuster, microprocessor, rectifier, inverters) or its control cable; because there is some defective in the shielding protection of equipment or cable, the strong electric field that transmitting antenna produces has produced influence to these equipment or cable and has caused the generation of incident.
Rule of thumb, the required distance between position when portable terminal (mobile phone) uses and the responsive electric meter control appliance around it remains on more than 1 m, can avoid the electromagnetic interference of portable terminal to the nuclear power station sensitive equipment substantially.But owing to distance and other ignorance factors that can't effectively control in actual use between portable terminal and the sensing instrument control appliance, so common way is to ban use of portable terminal in the industrial premises of plant area's scope.
But because the existence of human factor, the staff may bring hidden danger for the production safety of nuclear power station because carelessness does not have turning-off mobile terminal; Perhaps under the situation of turning-off mobile terminal, can't receive external information, and at some in particular cases, the staff needs again external reception information to finish the work, and has brought an implacable contradiction thereupon.
For addressing the above problem, the researcher has expected substituting portable terminal with beep-pager.Though the power of beep-pager very I is ignored, use beep-pager the sensing instrument control appliance not to be caused interference, use unrestricted.But there are many shortcomings in it:
A significant disadvantages of beep-pager is to lack safe secret protection.Anyone can tackle paging information at an easy rate in spread scope.Especially, at the environment that nuclear power station is had relatively high expectations to confidentiality like this, use beeper inadvertently confidential information to be revealed.Simultaneously, beep-pager only is a simple personal mobile communication equipment, and the message transmitted amount also can't realize the storage of information very little.
Still more, do not used beep-pager in present most of occasions, the international and domestic manufacturer that produces, keeps in repair beep-pager of going up is also very few, makes for the buying and the regular maintenance cycle of beep-pager long, costly.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of portable terminal and means of communication thereof that are applicable to nuclear power station plant area are provided, can be used as the substitute of beep-pager, use at the nuclear power station on-site, it has overcome the above-mentioned shortcoming of beep-pager, portable terminal is owing to adopt more security strategy, and the fail safe of communication is very high.Simultaneously, now the internal memory of portable terminal self is bigger, and the capacity of stored information strengthens greatly, and the portable terminal correlation technique upgrade fast, buying and maintenance period is short, expense is low.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of mobile terminal communication method that is applicable to nuclear power station plant area, comprising:
Portable terminal carries out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores; Described special pilot signal is the pilot signal that particular base station sends; Described particular base station is the base station that signal cover comprises the part or all of plant area of nuclear power station;
If the pilot signal obtained of described portable terminal is special pilot signal, then described portable terminal enters static condition, and self transmitting power is adjusted into 0, receives the signal from described particular base station, but sends out signal any outward.
Wherein, described portable terminal carries out the search of pilot signal, and after the special pilot signal comparison with the pilot signal obtained and described mobile terminal stores, also comprises:
If the pilot signal that described portable terminal obtains is non-special pilot signal, then described portable terminal is set up conventional communication link with the base station that sends described pilot signal, carries out data interaction by the up-downgoing channel.
Wherein, described portable terminal carries out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores, also comprises:
If described portable terminal do not search any pilot signal, then described portable terminal enters deadlock state, and self transmitting power and received power all is adjusted into 0;
Described portable terminal withdraws from described deadlock state after the time interval of presetting, carry out the search of pilot signal again.
Wherein, described portable terminal carries out also comprising before the search of pilot signal: the special pilot signal that presets all particular base station in described portable terminal.
Wherein, if the pilot signal that described portable terminal obtains is special pilot signal, then described portable terminal enters static condition, comprising:
As long as described portable terminal determines that the pilot signal of obtaining is special pilot signal, the power of described special pilot signal no matter then, described portable terminal all enters static condition.
Accordingly, the embodiment of the invention also provides a kind of portable terminal that is applicable to nuclear power station plant area, comprising:
The pilot signal processing module is used to carry out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores; Described special pilot signal is the pilot signal that particular base station sends; Described particular base station is the base station that signal cover comprises the part or all of plant area of nuclear power station;
The plant environment communication module, be used for when described pilot signal processing module judges that its pilot signal of obtaining is special pilot signal, control described portable terminal and enter static condition, the transmitting power of portable terminal is adjusted into 0, make it receive signal, but send out signal any outward from described particular base station.
Wherein, described portable terminal also comprises:
Conventional environment communication module is used for setting up conventional communication link with the base station that sends described pilot signal when described pilot signal processing module judges that its pilot signal of obtaining is non-special pilot signal, carries out data interaction by the up-downgoing channel.
Wherein, described pilot signal processing module comprises:
Special pilot tone memory cell is used to preset the special pilot signal of all particular base station;
The pilot signal searches unit is used for pilot signal is searched for, and obtains the pilot signal of its reception;
The pilot signal comparing unit, be used for the special pilot signal comparison that pilot signal that described pilot signal searches unit is obtained and described special pilot tone memory cell are stored, judge whether the pilot signal that described pilot signal searches unit is obtained is special pilot signal.
Wherein, described portable terminal also comprises:
The deadlock state control module is used for controlling described portable terminal and entering deadlock state when described pilot signal processing module does not search any pilot signal, and the transmitting power and the received power of portable terminal all is adjusted into 0.
Wherein, described deadlock state control module comprises:
Timing unit is used to preset the time threshold that portable terminal enters needs to keep this deadlock state behind the deadlock state;
The deadlock control unit is used for controlling described portable terminal and entering deadlock state when described pilot signal processing module does not search any pilot signal, and the transmitting power and the received power of portable terminal all is adjusted into 0; And control described pilot signal processing module and stop search pilot signal;
Deadlock is removed the unit, is used for after the time that described portable terminal enters deadlock state reaches the time threshold of described timing unit storage, and the control portable terminal withdraws from described deadlock state, activates the search that described pilot signal processing module is carried out pilot signal again.
The portable terminal that is applicable to nuclear power station plant area and the means of communication thereof that the embodiment of the invention provided can be used as the substitute of beep-pager, use at the nuclear power station on-site, and its fail safe that has overcome beep-pager is low, the shortcoming that memory capacity is little.Simultaneously, because the portable terminal that is applicable to nuclear power station plant area that present embodiment provided and the means of communication thereof do not need existing portable terminal and base station are changed on hardware, so safeguard that week is convenient, the realization cost is low.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a nuclear power station provided by the invention producing region schematic diagram;
Fig. 2 is the mobile terminal communication method first embodiment schematic flow sheet that is applicable to nuclear power station plant area provided by the invention;
Fig. 3 is the mobile terminal communication method second embodiment schematic flow sheet that is applicable to nuclear power station plant area provided by the invention;
Fig. 4 is the portable terminal first example structure schematic diagram that is applicable to nuclear power station plant area provided by the invention;
Fig. 5 is the portable terminal second example structure schematic diagram that is applicable to nuclear power station plant area provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Need to prove, signal cover is comprised that the base station of the part or all of plant area of nuclear power station is defined as particular base station in various embodiments of the present invention, the pilot signal that particular base station sends is special pilot signal.Particular base station herein and conventional base station do not have any different on software and hardware, and just the signal of particular base station has covered nuclear power station plant area, and conventional signal of base station does not cover nuclear power station plant area, as shown in Figure 1.Special pilot signal herein and conventional base station pilot signals also without any different, we are just in order to distinguish the pilot signal that particular base station and conventional base station send, and the pilot signal of particular base station transmission is called special pilot signal.
Referring to Fig. 2, be the mobile terminal communication method first embodiment schematic flow sheet that is applicable to nuclear power station plant area provided by the invention, as shown in Figure 2, this method flow comprises:
At step S100, portable terminal carries out the search of pilot signal.
At step S101, portable terminal is with pilot signal of obtaining and the special pilot signal comparison of self storing;
If the pilot signal that described portable terminal obtains is special pilot signal, then execution in step S102; If the pilot signal that described portable terminal obtains is non-special pilot signal, then execution in step S103.
At step S102, portable terminal enters static condition, and self transmitting power is adjusted into 0, receives the signal from described particular base station, but sends out signal any outward.
At step S103, portable terminal is set up conventional communication link with the base station that sends described pilot signal, carries out data interaction by the up-downgoing channel.
Implement the mobile terminal communication method that is applicable to nuclear power station plant area that the embodiment of the invention provides, can substitute beep-pager with portable terminal and use, and it is low to have overcome the fail safe of beep-pager, the shortcoming that memory capacity is little at the nuclear power station on-site.Simultaneously, because the mobile terminal communication method that is applicable to nuclear power station plant area that present embodiment provided does not need existing base station is changed on hardware, so safeguard that week is convenient, the realization cost is low.
Referring to Fig. 3, be the mobile terminal communication method second embodiment schematic flow sheet that is applicable to nuclear power station plant area provided by the invention, in the present embodiment, with the flow process of this mobile terminal communication method of more detailed description.In embodiments of the present invention; insert code division multiple access (CDMA with portable terminal; Code Division Multiple Access) network is that example describes; be intended to help the public better to understand the present invention; those skilled in the art are by reading present embodiment; can be informed in other mobile network; as global system for mobile communications (GSM; global system for mobile communications); 3G (Third Generation) Moblie network (3G; 3rd-generation); can utilize identical principle to reach identical technique effect, so can not limit protection scope of the present invention with this.
The mobile terminal communication method that present embodiment provides is as shown in Figure 3:
At step S200, in described portable terminal, preset the special pilot signal of all particular base station.More specifically, in general realize by distinguishing pilot signal portable terminal identification base station.Forward pilot signal is the PN sequence of a non-modulated, and code length is 32768chip, and spreading rate is 1.2288Mchip/s.And real realization differentiation is to setover by pilot signal.
Under regular situation, with respect to portable terminal, under a certain carrier frequency, the pilot signal of all different biasings is classified as following set:
Effective pilot signal collection: the pilot signal that interrelates with forward traffic channel of distributing to portable terminal.
The candidate pilot collection: current not in effective pilot signal collection, but had enough intensity, can be by the pilot signal of successful demodulation.
Adjacent pilot frequencies set of signals:, but may become the pilot signal of active set or Candidate Set because insufficient strength is current not in effective pilot signal collection or candidate pilot collection.
Residue pilot signal collection: on current C DMA carrier frequency, the possible pilot signal collection of the institute in the current system, but be not included in the adjacent pilot frequencies set of signals, the pilot signal in candidate pilot collection and the effective pilot signal collection.
In embodiments of the present invention, add a special pilot signal collection at this specially: distribute to the pilot signal of particular base station, this special pilot signal collection writes portable terminal in advance.
Accordingly, in embodiments of the present invention, to remain the pilot signal collection is modified to: on current C DMA carrier frequency, institute in the current system might the pilot signal collection, but is not included in special pilot signal collection, adjacent pilot frequencies set of signals, candidate pilot collection and the effective pilot signal in the pilot signal collection.
At step S201, portable terminal carries out the search of pilot signal.More specifically, can enter init state behind the mobile terminal-opening, in this state, pilot signal and the synchronizing signal that sent each base station around portable terminal constantly detected.
For the cdma network of routine, the portable terminal init state is divided into four sub-states again: determine that the sub-state of system, pilot channel catch sub-state, the sub-state of synchronization channel acquisition and regularly change sub-state.
(1) determines the sub-state of system: after portable terminal powers on, will produce the indication that powers on, carry out System self-test (as checking battery electric quantity), the system that enters then determines sub-state and the corresponding system parameters that resets, and determines that according to being provided with of portable terminal the mode of operation of portable terminal is that cdma system still is analogue system and working frequency points.Select a frequency as the carrier frequency that inserts cdma system the carrier frequency that portable terminal was preserved from the last time or Primary that preserves in portable terminal or the secondary carrier frequency, this step can be called system's selection course.After this process was finished, portable terminal entered the sub-state of pilot capture.
(2) the sub-state of pilot capture: catch in the sub-state at pilot channel, portable terminal to determined frequency before, is searched for its frequency tuning according to selected CDMA Channel.If pilot channel is at official hour T20m(15s) the IT success, then change the sub-state of synchronization channel acquisition over to; Otherwise, if exceed this time, should produce and catch the failure indication, and turn back to the sub-state of definite system.In this stage, the local correlator of the pilot searcher utilization of portable terminal is searched for all PN biasings, finds out the biasing of Ec/Io maximum., then think and on this channel, catch failure if but all biasings all are lower than demodulation threshold.
(3) the sub-state of synchronization channel acquisition: after entering this sub-state, portable terminal places the strongest PN biasing with the branch of RAKE receiver, message in the demodulation synchronizing channel (because synchronizing channel do not pass through the long code scrambler, so can demodulation corresponding synchronous channel).If portable terminal is not received an efficient synchronization channel massage in T21m (1S), then carry " catching the failure indication " retrieval system and determine sub-state.
(4) regularly change sub-state: in this state, portable terminal is mainly finished two work: the one, and utilize the long code state value (lc_state) that from Sync Channel Message, extracts that the long code generator of oneself is set, another is exactly to make system time of oneself and the system time (sys_time) that is extracted synchronous.Align because the message of synchronizing channel sends with system timing strictness, so just make portable terminal to align the long code generator state of oneself with the long code state of whole system.In addition, also may carry out the adjustment etc. of frequency.
Above-mentioned 4 sub-states be portable terminal in cdma network, the conventional init state after the start.In the present embodiment, the init state of portable terminal and above-described conventional init state are distinguished to some extent, portable terminal is not to return " determining the sub-state of system " or enter " the sub-state of synchronization channel acquisition " after " the sub-state of pilot capture ", but execution in step S202.
At step S202, portable terminal judges whether acquisition pilot signal in " the sub-state of pilot capture ", if do not catch any base station pilot signals, is not the initialization flow process as routine---return " determining the sub-state of system ", but execution in step S203, portable terminal enters deadlock state; If portable terminal caught base station pilot signals, neither be as the initialization flow process of routine---directly enter " the sub-state of synchronization channel acquisition ", but execution in step S205 compares to pilot signal further.
At step S203, portable terminal enters deadlock state, and self transmitting power and received power all is adjusted into 0.More specifically, when portable terminal had not both captured the pilot signal of particular base station, when also not capturing the pilot signal of general base station, just enter this state.Adding this state, is to consider for following several situations: 1, in order to be different from the static condition that the back can be mentioned.2, for security consideration, any pilot signal of portable terminal does not all capture, may be stronger owing to environment electromagnetics shielding of living in, and probably be in the on-site of nuclear power station this moment, so can not allow it launch any signal; Certainly, it also may be owing to portable terminal self hardware problem that portable terminal does not capture any pilot signal, but this moment, portable terminal also might be in on-site, was in safe consideration, so can not allow it transmit.
At step S204, portable terminal withdraws from described deadlock state after the time interval of presetting, and carries out the search of pilot signal again.More specifically, the time preset of deadlock state (for example 15 seconds) can preset at portable terminal in user or portable terminal manufacturer, portable terminal picks up counting after entering deadlock state, when portable terminal maintained deadlock state after 15 seconds, automatically withdraw from deadlock state, return step S201, carry out the search of pilot signal again.
At step S205, portable terminal is with pilot signal of obtaining and the special pilot signal comparison of self storing.If the pilot signal of obtaining is non-special pilot signal, then execution in step S206; If the pilot signal of obtaining is special pilot signal, to execution in step S207.
At step S206, portable terminal enters " the sub-state of synchronization channel acquisition " and " regularly changing sub-state " according to the initialization procedure of routine, sets up conventional communication link with the base station that sends this pilot signal, carries out data interaction by the up-downgoing channel.
At step S207, portable terminal enters static condition, and self transmitting power is adjusted into 0, receives the signal from described particular base station, but sends out signal any outward.More specifically, after portable terminal captures special pilot signal from particular base station, just enter static condition.At this moment, portable terminal is adjusted to 0W with self transmitting power, i.e. the no longer outside any signal of emission, but can accept information from particular base station.
Further, for general portable terminal,, in the threshold range that is provided with, can not be considered to not catch if the pilot signal strength of catching is very little.But in embodiments of the present invention, for security consideration, the permit standard of static condition is more wide in range: as long as capture the pilot signal of particular base station, its intensity size no matter is all thought acquisition success.In case acquisition success, portable terminal enter static condition at once.
The embodiment of the invention is that the initial condition with mobile terminal-opening is that example describes, and is in (as start in a conventional manner) under other states at portable terminal, and portable terminal also will carry out the search of pilot signal.This search procedure coexist under the open state the sub-state class of pilot capture seemingly.Portable terminal is by ceaselessly adjusting the inner phase place of making the sign indicating number sequence of coherent demodulation, and the signal received of demodulation, when portable terminal internal code sequence is consistent with the phase place of received signal code sequence, then obtains a pilot signal that power is stronger.Portable terminal is just with this pilot signal biasing and comparing that special pilot signal is concentrated, if coupling, then explanation captures the pilot signal of particular base station.At this moment, portable terminal has just entered static condition, carries out pilot search again after after a while.If both there be not the pilot signal of the particular base station that searches out, do not search the pilot signal of general base station again, portable terminal just enters deadlock state, carries out pilot search equally again after after a while.
Implement the mobile terminal communication method that is applicable to nuclear power station plant area that the embodiment of the invention provides, can substitute beep-pager with portable terminal and use, and it is low to have overcome the fail safe of beep-pager, the shortcoming that memory capacity is little at the nuclear power station on-site.This method makes the portable terminal can be as the conventional normal use of portable terminal at the nuclear power station off-site, after entering plant area, and shutdown signal emission function, only received signal automatically.Simultaneously, because the mobile terminal communication method that is applicable to nuclear power station plant area that present embodiment provided does not need existing base station is changed on hardware, so safeguard that week is convenient, the realization cost is low.
Referring to Fig. 4, be the portable terminal first example structure schematic diagram that is applicable to nuclear power station plant area provided by the invention, as shown in Figure 4, this portable terminal comprises:
Pilot signal processing module 1 is used to carry out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores; Described special pilot signal is the pilot signal that particular base station sends; Described particular base station is the base station that signal cover comprises the part or all of plant area of nuclear power station.
Plant environment communication module 2, be used for when described pilot signal processing module 1 judges that its pilot signal of obtaining is special pilot signal, control described portable terminal and enter static condition, the transmitting power of portable terminal is adjusted into 0, make it receive signal, but send out signal any outward from described particular base station.
Implement the portable terminal that is applicable to nuclear power station plant area that the embodiment of the invention provides, can substitute beep-pager and use, and it is low to have overcome the fail safe of beep-pager, the shortcoming that memory capacity is little at the nuclear power station on-site.Simultaneously, because the portable terminal that is applicable to nuclear power station plant area that present embodiment provided does not need existing base station is changed on hardware, so safeguard that week is convenient, the realization cost is low.
Referring to Fig. 5, be the portable terminal second example structure schematic diagram that is applicable to nuclear power station plant area provided by the invention, in the present embodiment, with structure and each functions of components of more detailed this portable terminal of description.As shown in Figure 5, this portable terminal comprises: pilot signal processing module 1, plant environment communication module 2, conventional environment communication module 3, deadlock state control module 4.
Pilot signal processing module 1 is used to carry out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores.More specifically, this pilot signal processing module 1 comprises:
Special pilot tone memory cell 11 is used to preset the special pilot signal of all particular base station.More specifically, in general realize by distinguishing pilot signal portable terminal identification base station.Forward pilot signal is the PN sequence of a non-modulated, and code length is 32768chip, and spreading rate is 1.2288Mchip/s.And real realization differentiation is to setover by pilot signal.
Under regular situation, with respect to portable terminal, under a certain carrier frequency, the pilot signal of all different biasings is classified as following set:
Effective pilot signal collection: the pilot signal that interrelates with forward traffic channel of distributing to portable terminal.
The candidate pilot collection: current not in effective pilot signal collection, but had enough intensity, can be by the pilot signal of successful demodulation.
Adjacent pilot frequencies set of signals:, but may become the pilot signal of active set or Candidate Set because insufficient strength is current not in effective pilot signal collection or candidate pilot collection.
Residue pilot signal collection: on current C DMA carrier frequency, the possible pilot signal collection of the institute in the current system, but be not included in the adjacent pilot frequencies set of signals, the pilot signal in candidate pilot collection and the effective pilot signal collection.
In embodiments of the present invention, add a special pilot signal collection at this specially: distribute to the pilot signal of particular base station, this special pilot signal collection writes special pilot tone memory cell 11 in advance.
Accordingly, in embodiments of the present invention, to remain the pilot signal collection is modified to: on current C DMA carrier frequency, institute in the current system might the pilot signal collection, but is not included in special pilot signal collection, adjacent pilot frequencies set of signals, candidate pilot collection and the effective pilot signal in the pilot signal collection.
Pilot signal searches unit 12 is used for pilot signal is searched for, and obtains the pilot signal of its reception; More specifically, can enter init state behind the mobile terminal-opening, in this state, pilot signal and the synchronizing signal that sent each base station around pilot signal searches unit 12 constantly detected.
Pilot signal comparing unit 13, be used for the special pilot signal comparison of pilot signal that described pilot signal searches unit is obtained and 11 storages of described special pilot tone memory cell, judge whether the pilot signal that described pilot signal searches unit 12 is obtained is special pilot signal.
Plant environment communication module 2, be used for when described pilot signal processing module 1 judges that its pilot signal of obtaining is special pilot signal, control described portable terminal and enter static condition, the transmitting power of portable terminal is adjusted into 0, make the signal of its reception from described particular base station, but send out signal any outward, but can accept information from particular base station.
Further, for general portable terminal,, in the threshold range that is provided with, can not be considered to not catch if the pilot signal strength that pilot signal processing module 1 is caught is very little.But in embodiments of the present invention, for security consideration, the permit standard of static condition is more wide in range: as long as pilot signal processing module 1 captures the pilot signal of particular base station, its intensity size no matter is all thought acquisition success.In case acquisition success, plant environment communication module 2 is controlled portable terminal at once and is entered static condition.
Conventional environment communication module 3 is used for setting up conventional communication link with the base station that sends described pilot signal when described pilot signal processing module 1 judges that its pilot signal of obtaining is non-special pilot signal, carries out data interaction by the up-downgoing channel.
In actual applications, pilot signal processing module 1 is except catching conventional pilot signal and special pilot signal, also the situation that any base station pilot signals does not all capture may appear, this may be because portable terminal environment electromagnetics shielding of living in is stronger, and probably be in the on-site of nuclear power station this moment, can not allow this portable terminal launch any signal.Certainly, it also may be owing to portable terminal self hardware problem that pilot signal processing module 1 does not capture any pilot signal, but this moment, portable terminal also might be in on-site, was in safe consideration, so can not allow it transmit.
For this reason, the portable terminal that the embodiment of the invention provides specially is provided with deadlock state control module 4, be used for when described pilot signal processing module 1 does not search any pilot signal, control described portable terminal and enter deadlock state, the transmitting power and the received power of portable terminal all is adjusted into 0.More specifically, deadlock state control module 4 comprises:
Timing unit 41 is used to preset the time threshold that portable terminal enters needs to keep this deadlock state behind the deadlock state; And after entering deadlock state, portable terminal promptly picks up counting.
Deadlock control unit 42 is used for controlling described portable terminal and entering deadlock state when described pilot signal processing module 1 does not search any pilot signal, and the transmitting power and the received power of portable terminal all is adjusted into 0; And control described pilot signal processing module and stop search pilot signal.
Deadlock is removed unit 43, be used for after the time that described portable terminal enters deadlock state reaches the time threshold of described timing unit 1 storage, the control portable terminal withdraws from described deadlock state, activates the search that described pilot signal processing module 1 is carried out pilot signal again.
Implement the portable terminal that is applicable to nuclear power station plant area that the embodiment of the invention provides, can substitute beep-pager with portable terminal and use, and it is low to have overcome the fail safe of beep-pager, the shortcoming that memory capacity is little at the nuclear power station on-site.This portable terminal can be as the conventional normal use of portable terminal at the nuclear power station off-site, after entering plant area, and shutdown signal emission function, only received signal automatically.Simultaneously, because the mobile terminal communication method that is applicable to nuclear power station plant area that present embodiment provided does not need existing base station is changed on hardware, so safeguard that week is convenient, the realization cost is low.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1. a mobile terminal communication method that is applicable to nuclear power station plant area is characterized in that, comprising:
Portable terminal carries out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores; Described special pilot signal is the pilot signal that particular base station sends; Described particular base station is the base station that signal cover comprises the part or all of plant area of nuclear power station;
If the pilot signal obtained of described portable terminal is special pilot signal, then described portable terminal enters static condition, and self transmitting power is adjusted into 0, receives the signal from described particular base station, but sends out signal any outward.
2. the mobile terminal communication method that is applicable to nuclear power station plant area as claimed in claim 1, it is characterized in that, described portable terminal carries out the search of pilot signal, and after the special pilot signal comparison with the pilot signal obtained and described mobile terminal stores, also comprises:
If the pilot signal that described portable terminal obtains is non-special pilot signal, then described portable terminal is set up conventional communication link with the base station that sends described pilot signal, carries out data interaction by the up-downgoing channel.
3. the mobile terminal communication method that is applicable to nuclear power station plant area as claimed in claim 1 is characterized in that described portable terminal carries out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores, also comprises:
If described portable terminal do not search any pilot signal, then described portable terminal enters deadlock state, and self transmitting power and received power all is adjusted into 0;
Described portable terminal withdraws from described deadlock state after the time interval of presetting, carry out the search of pilot signal again.
4. the mobile terminal communication method that is applicable to nuclear power station plant area as claimed in claim 1 is characterized in that, described portable terminal carries out also comprising before the search of pilot signal: the special pilot signal that presets all particular base station in described portable terminal.
5. as each described mobile terminal communication method that is applicable to nuclear power station plant area in the claim 1 to 4, it is characterized in that if the pilot signal that described portable terminal obtains is special pilot signal, then described portable terminal enters static condition, comprising:
As long as described portable terminal determines that the pilot signal of obtaining is special pilot signal, the power of described special pilot signal no matter then, described portable terminal all enters static condition.
6. a portable terminal that is applicable to nuclear power station plant area is characterized in that, comprising:
The pilot signal processing module is used to carry out the search of pilot signal, and with the special pilot signal comparison of the pilot signal obtained and described mobile terminal stores; Described special pilot signal is the pilot signal that particular base station sends; Described particular base station is the base station that signal cover comprises the part or all of plant area of nuclear power station;
The plant environment communication module, be used for when described pilot signal processing module judges that its pilot signal of obtaining is special pilot signal, control described portable terminal and enter static condition, the transmitting power of portable terminal is adjusted into 0, make it receive signal, but send out signal any outward from described particular base station.
7. the portable terminal that is applicable to nuclear power station plant area as claimed in claim 6 is characterized in that, described portable terminal also comprises:
Conventional environment communication module is used for setting up conventional communication link with the base station that sends described pilot signal when described pilot signal processing module judges that its pilot signal of obtaining is non-special pilot signal, carries out data interaction by the up-downgoing channel.
8. the portable terminal that is applicable to nuclear power station plant area as claimed in claim 6 is characterized in that, described pilot signal processing module comprises:
Special pilot tone memory cell is used to preset the special pilot signal of all particular base station;
The pilot signal searches unit is used for pilot signal is searched for, and obtains the pilot signal of its reception;
The pilot signal comparing unit, be used for the special pilot signal comparison that pilot signal that described pilot signal searches unit is obtained and described special pilot tone memory cell are stored, judge whether the pilot signal that described pilot signal searches unit is obtained is special pilot signal.
9. the portable terminal that is applicable to nuclear power station plant area as claimed in claim 6 is characterized in that, described portable terminal also comprises:
The deadlock state control module is used for controlling described portable terminal and entering deadlock state when described pilot signal processing module does not search any pilot signal, and the transmitting power and the received power of portable terminal all is adjusted into 0.
10. the portable terminal that is applicable to nuclear power station plant area as claimed in claim 9 is characterized in that, described deadlock state control module comprises:
Timing unit is used to preset the time threshold that portable terminal enters needs to keep this deadlock state behind the deadlock state;
The deadlock control unit is used for controlling described portable terminal and entering deadlock state when described pilot signal processing module does not search any pilot signal, and the transmitting power and the received power of portable terminal all is adjusted into 0; And control described pilot signal processing module and stop search pilot signal;
Deadlock is removed the unit, is used for after the time that described portable terminal enters deadlock state reaches the time threshold of described timing unit storage, and the control portable terminal withdraws from described deadlock state, activates the search that described pilot signal processing module is carried out pilot signal again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188200.0A CN102256013B (en) | 2011-07-06 | 2011-07-06 | Mobile terminal and communication method thereof applied to nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188200.0A CN102256013B (en) | 2011-07-06 | 2011-07-06 | Mobile terminal and communication method thereof applied to nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102256013A true CN102256013A (en) | 2011-11-23 |
| CN102256013B CN102256013B (en) | 2014-02-19 |
Family
ID=44982998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110188200.0A Active CN102256013B (en) | 2011-07-06 | 2011-07-06 | Mobile terminal and communication method thereof applied to nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102256013B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906168A (en) * | 2014-04-11 | 2014-07-02 | 中广核工程有限公司 | Composite mobile communication method, terminal and system for nuclear power station |
| CN106357329A (en) * | 2016-10-18 | 2017-01-25 | 中广核工程有限公司 | Wireless communication method, device and system of hand-held terminal and electromagnetic sensitive region base station in nuclear power plant |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241889A (en) * | 1998-06-30 | 2000-01-19 | 朗迅科技公司 | Method and apparatus for determining whether wireless station is operating within prescribed geographic region |
| CN1638520A (en) * | 2003-12-22 | 2005-07-13 | 乐金电子(中国)研究开发中心有限公司 | Network searching method for GSM terminal |
| EP1841255A1 (en) * | 2006-03-28 | 2007-10-03 | Carlos Alberto Pérez Lafuente | Method and system for monitoring a mobile station presence in a special area |
| CN101273538A (en) * | 2005-08-08 | 2008-09-24 | 高通股份有限公司 | Sleep mode for wireless communication device during out of service operation |
| CN101449616A (en) * | 2006-05-17 | 2009-06-03 | 卢森特技术有限公司 | Identification of base stations |
| CN101841595A (en) * | 2010-01-20 | 2010-09-22 | 中广核工程有限公司 | Dedicated mobile communication terminal, system and method thereof |
| CN101873563A (en) * | 2010-06-18 | 2010-10-27 | 展讯通信（上海）有限公司 | Signal sending method and mobile terminal |
-
2011
- 2011-07-06 CN CN201110188200.0A patent/CN102256013B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241889A (en) * | 1998-06-30 | 2000-01-19 | 朗迅科技公司 | Method and apparatus for determining whether wireless station is operating within prescribed geographic region |
| CN1638520A (en) * | 2003-12-22 | 2005-07-13 | 乐金电子(中国)研究开发中心有限公司 | Network searching method for GSM terminal |
| CN101273538A (en) * | 2005-08-08 | 2008-09-24 | 高通股份有限公司 | Sleep mode for wireless communication device during out of service operation |
| EP1841255A1 (en) * | 2006-03-28 | 2007-10-03 | Carlos Alberto Pérez Lafuente | Method and system for monitoring a mobile station presence in a special area |
| CN101449616A (en) * | 2006-05-17 | 2009-06-03 | 卢森特技术有限公司 | Identification of base stations |
| CN101841595A (en) * | 2010-01-20 | 2010-09-22 | 中广核工程有限公司 | Dedicated mobile communication terminal, system and method thereof |
| CN101873563A (en) * | 2010-06-18 | 2010-10-27 | 展讯通信（上海）有限公司 | Signal sending method and mobile terminal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906168A (en) * | 2014-04-11 | 2014-07-02 | 中广核工程有限公司 | Composite mobile communication method, terminal and system for nuclear power station |
| WO2015154501A1 (en) * | 2014-04-11 | 2015-10-15 | 中广核工程有限公司 | Compound mobile communication method, terminal and system for nuclear power plant |
| US10397882B2 (en) | 2014-04-11 | 2019-08-27 | China Nuclear Power Engineering Co., Ltd. | Compound mobile communication method, terminal and system for nuclear power plant |
| CN106357329A (en) * | 2016-10-18 | 2017-01-25 | 中广核工程有限公司 | Wireless communication method, device and system of hand-held terminal and electromagnetic sensitive region base station in nuclear power plant |
| CN106357329B (en) * | 2016-10-18 | 2019-03-19 | 中广核工程有限公司 | Nuclear power plant's handheld terminal, electromagnetic susceptibility origin base station wireless communications method, apparatus and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102256013B (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105474673B (en) | Signaling is directly controlled in wireless communication system | |
| Luo et al. | Efficient missing tag detection in RFID systems | |
| US8605693B2 (en) | Apparatus and method for low power local area communication using event signal control | |
| WO2015058082A1 (en) | Near field communication system and method for controlling transmission power of near field communication system | |
| US20070046459A1 (en) | Methods and apparatus for asset tracking | |
| RU2191472C2 (en) | Method for locating cells in mobile communication system | |
| CN106211044A (en) | Gateway, ZigBee equipment, ZigBee distribution network systems | |
| CN104244239A (en) | Mobile hotspot starting device, method and system | |
| WO2016105737A1 (en) | Method and apparatus for energy harvest from a proximity coupling device | |
| CN103546940A (en) | Method and device for searching cells in sensing system | |
| US9529076B2 (en) | Systems and methods for determining locations of wireless sensor nodes in an asymmetric network architecture | |
| CN105391865A (en) | Method and system for starting anti-theft function of mobile terminal via shutdown mode | |
| KR20120071110A (en) | Base station, terminal, and operating method thereof | |
| CN102202322A (en) | Method for anti-interference of wireless sensor network based on game theory | |
| US9974020B1 (en) | Safe zone creation to reduce power consumption in an electronic digital tracking device | |
| CN105530476A (en) | Intelligent security protection system configuration method and apparatus | |
| CN110557184B (en) | Communication method and device based on relay equipment and communication method and device between terminal and base station | |
| CN102256013A (en) | Mobile terminal and communication method thereof applied to nuclear power plant | |
| CN104506645A (en) | Data collection terminal for Internet of Things and communication method and communication system of data collection terminal | |
| US20160066264A1 (en) | Access Node Dormancy | |
| CN105376531A (en) | Intelligent security and protection system based on IOT (Internet of Things) | |
| US20110080265A1 (en) | Rfid tag communication system and apparatus for communicating with rfid tag | |
| CN101583203A (en) | Remote control device and remote control method for mobile phone | |
| JP2018510594A (en) | System and method for providing a wireless sensor network having an asymmetric network architecture | |
| US20230021561A1 (en) | System and method for distinguishing between active and passive nfc devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151209 Address after: 518000 Guangdong city of Shenzhen province Futian District science and technology building, Shangbu Road 15 Patentee after: Lingao Nuclear Power Co., Ltd. Patentee after: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Patentee after: China General Nuclear Power Corporation Address before: 518000 Guangdong city of Shenzhen province Futian District science and technology building, Shangbu Road 15 Patentee before: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Patentee before: China Guangdong Nuclear Power Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Futian District science and technology building, Shangbu Road 15 Patentee after: Lingao Nuclear Power Co., Ltd. Patentee after: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE Patentee after: China General Nuclear Power Corporation Address before: 518000 Guangdong city of Shenzhen province Futian District science and technology building, Shangbu Road 15 Patentee before: Lingao Nuclear Power Co., Ltd. Patentee before: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Patentee before: China General Nuclear Power Corporation |