CN1062407C - Wide-area pager and method of controlling radio paging in wide area - Google Patents
Wide-area pager and method of controlling radio paging in wide area Download PDFInfo
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- CN1062407C CN1062407C CN94118914A CN94118914A CN1062407C CN 1062407 C CN1062407 C CN 1062407C CN 94118914 A CN94118914 A CN 94118914A CN 94118914 A CN94118914 A CN 94118914A CN 1062407 C CN1062407 C CN 1062407C
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Abstract
The present invention relates to a wide area pager and a method for controlling wide area paging, wherein the pager comprises an operating switch, a central processing unit (CPU), an electrically erasable programmable read-only memory (EEPROM), a liquid crystal display (LCD), a frequency synthesizer, a receiver, an intermediate frequency (IF) processor, an information extraction processor and a driving circuit.
Description
The present invention relates to the method for wide area paging machine and control wide area radio paging.
In the common beep-pager, wireless paging service is limited to identification (ID) number corresponding area with the user, and this ID number is to be distributed by communication service company when the user has paid desired expense.For this reason, when the user goes to the different regions that are not inconsistent with the ID number, in other words, when he to another area travelling or when going on business, he can not enjoy this wireless paging service basically.
For enjoy this wireless paging service in different regions, the user must obtain the ID number of this area or buy the new beep-pager that can use in this area from communication service company.So just cause using inconvenience and cost to increase.So also make its mobility poor, be difficult to transmit fast information.
Therefore, consider the problems referred to above and proposed the present invention, the purpose of this invention is to provide the method for the radio call in wide area paging machine and the control wide area, in this zone, wireless paging service can manually or automatically offer the user who has only a beep-pager in any area that the user goes to.
According to one aspect of the invention, the wide area paging machine that is provided comprises switching device shifter, is used for producing automatically/manual service district select command according to user's selection; Control device, be used for according to described switching device shifter send automatically/manual service district select command differentiates the frequency of selected service area and recognition number and according to the frequency of being differentiated with recognition number controls the radio call in selected area so that wireless paging service can offer the user in selected area; Storage device is used for storing about the information of the frequency in customer service area and recognition number and exports stored information to described control device; Display unit is used for showing the various information that comprise the regional professional possibility of selected business under the control of described control device; Apparatus for frequency synthesizing is used for control frequency acceptance band under described control device control so that frequency and recognition number that described control device is differentiated can be received; Receiving system is used for receiving the frequency acceptance band radio call ripple signal that described apparatus for frequency synthesizing is controlled; The intermediate frequency process device is used for the intermediate frequency process of described receiving system output signal and described apparatus for frequency synthesizing output signal; The information extraction processing unit is used for the frequency and the recognition number that extract the frequency of selected service area and recognition number and extracted to described control device output from described intermediate frequency process device output signal; And drive unit, be used under the control of described control device, driving and report to the police with light-emitting diode, motor and buzzer.
Described according to a further aspect of the invention, provide a kind of method of control radio call in wide area, it comprises the following steps: that (a) differentiates that it is artificial or automatically that service area is selected; (b), just from memory, read the frequency in user-selected professional area and recognition number and according to the frequency of the selected service area that reads and recognition number information Control frequency acceptance band radio call ripple signal with the reception frequency acceptance band of being controlled if to select be artificial to the service area of differentiating in step (a); (c) be received in the radio call ripple signal of the frequency acceptance band of described step (b) control, the recognition number information of the radio call ripple signal that received and the recognition number information that reads from described memory are differentiated the existence of calling out relatively and according to comparative result; (d) be automatic if identify the selection of professional area in step (a), just read the frequency and the recognition number information of first service area in service area frequency from be stored in described memory and the recognition number information, and according to the frequency of first service area that is read and recognition number information Control frequency acceptance band to receive the radio call ripple signal of the frequency acceptance band of being controlled; Whether (e) whether differentiation receives the radio call signal of telecommunication of the frequency acceptance band of described step (d) control, be to receive to differentiate first service area; (f), can not receive then return step (d) to differentiate whether ensuing service area can receive if described step (e) identifies first service area if described step (e) is differentiated first service area for receiving then keep first service area.
Above-mentioned and other purpose of the present invention, feature and advantage can be well understood to from the detailed description of doing below in conjunction with accompanying drawing more, in the accompanying drawing:
Fig. 1 is the block diagram of beep-pager of the present invention;
Fig. 2,3, the 4th illustrates the flow chart according to radio call control method of the present invention;
Fig. 5 is the view that explanation is used for radio call data format of the present invention.
With reference to Fig. 1, given is the block diagram of beep-pager of the present invention.As shown in the figure, beep-pager comprises console switch 1, is used for selecting to produce automatically/manual service district select command according to the user; CPU 2 (CPU), be used to differentiate according to console switch 1 automatically/frequency of the selected service area of manual service district select command and ID number and according to the radio call of discriminating frequency and the selected service area of ID numerical control system so that wireless paging service can offer the user of selected service area; Electric erasable and programmable read only memory (EEPROM) 3 is used to store about the information of the frequency in customer service district and ID number and with stored information and exports CPU2 to; And LCD (LCD) 4, be used under the control of CPU2, showing the various information that comprise the professional possibility of selected service area.
Beep-pager also comprises frequency synthesizer 5, is used for control frequency acceptance band under the control of CPU2 so that frequency that CPU2 differentiated and ID number can be received; Receiver 6 is used for the radio call ripple signal of receive frequency synthesizer 5 frequency acceptance band of controlling; Intermediate frequency (IF) processor 7 is used for the output signal of receiver 6 and the output signal of frequency synthesizer 5 are carried out the IF processing; Information extraction processor 8, be used for from the output signal of IF processor 7 extract the frequency of selected service area and ID number and output the frequency that extracts and ID number to CPU2; With drive circuit 9, be used under the control of CPU2, driving and report to the police with LED 1, motor M 1 and buzzer BZ.
Among Fig. 1, reference number 10 is represented the power supply switch controller of EEPROM3,11 represent frequency multiplier, and 12 represent the low-pass filtering switch, and 13 represent the backing CD-ROM driver of LCD4,14 representative programming connectors, 15 represent direct current (DC)/DC transducer, and 16 represent the front end mains switch, and 5A represents phase-locked loop (PLL) integrated circuit (IC), 5B represents voltage controlled oscillator (VCO), 6A represents loop aerial, and 6B represents band pass filter, and 6C represents radio frequency (RF) amplifier, 6D represents band pass filter, 7A represents frequency mixer, and 7B represents crystal (X-TAL) filter, and 7C represents the IF amplifier, 8A represents frequency mixer, 8B represents local oscillator, and 8C represents adjuster, and 8D represents waveshaper/frequency shift keying (FSK) comparator, 8E represents low pass filter, 8F represents wave detector, and 8G represents the IF amplifier, and 9A represents led driver, 9B represents motor driver, and 9C represents buzzer driver.
Have according to the work of the beep-pager of said structure of the present invention and will describe in detail referring to figs. 1 through 3 hereinafter, wherein Fig. 2 is the flow chart of explanation according to the control method of radio call of the present invention, and Fig. 3 is the view that explanation is used for radio call data format of the present invention.
At first, the ground allocating frequency and the ID number that often go to him of customer requirements communication service company.Then, the frequency of service area and ID number are deposited in EEPROM3 in turn.
Connect the beep-pager power supply in this case, CPU2 reads information or frequency and ID number about first service area (drive and stay the area) from EEPROM3, and shows the name of first service area on KCD4.In addition, CPU2 is according to the frequency of first service area that reads and the ID numerical control system frequency synthesizer 5 radio call ripple signal with the reception this area.In other words, CPU2 is to frequency synthesizer 5 output PLL data.
In frequency synthesizer 5, but the PLL data output voltage control signal of PLL IC5A response CPU2 output to VCO 5B with tuning radio call electric wave signal to the first service area frequency acceptance band.The vibrate signal of receivable frequency band in first service area of the voltage control signal of VCO 5B response PLL IC 5A.VCO 5B is added to oscillator signal on the frequency mixer 7A in the IF processor 7 by frequency multiplier 11 then.
Radio call ripple signal is received by the loop aerial 6A in the receiver 6.In receiver 6, the radio call ripple signal that is received is amplified through RF amplifier 6C, then again through band pass filter 6D bandpass filtering by band pass filter 6B bandpass filtering then.Be added on the frequency mixer 7A in the IF processor 7 from the composite signal of band pass filter 6D.Frequency mixer 7A the output signal of band pass filter 6D with from the output signal mixing of frequency multiplier 11, and mixed frequency signal output as an IF signal.In IF processor 7, an IF signal of frequency mixer 7A output is amplified through IF amplifier 7B again by X-TAL filter 7B filtering, is added to then on the information extraction processor 8 then.
In information extraction processor 8, frequency mixer 8A will mix from the output signal of IF processor 7 and the output signal of local oscillator 8B, and mixed signal is exported as the 2nd IF signal.The 2nd IF signal of frequency mixer 8A output is amplified by IF amplifier 8G, by wave detector 8F detection, again by low pass filter 8E low-pass filtering, then is added on waveshaper/FSK comparator 8D.As a result, waveshaper/FSK comparator 8D extracts ID number number information and institute is extracted ID number number information from received signal and is sent to CPU2.
CPU2 with information extraction processor 8 the ID that extracts number number information with compare from the ID number number information that EEP-ROM3 read.If comparative result be information extraction processor 8 the ID that extracts number number information with identical from ID number number information that EEPROM3 read, then CPU2 identifies and has a customer call, so motor driver 9B in the control Driver Circuit 9 and buzzer driver 9C come drive motors M1 and buzzer BZ, with notify the user he called out.
In addition, when identifying the input of numeral that the information of decoding from information extraction processor 8 output obtains or character information, CPU2 shows that on LCD4 institute's input digit or character information are so that user's affirmation.
When the user went to a different business district in the process of using beep-pager in the above described manner, he was with the artificially or automatically select this area.
At first, as user during by the current service area of living in of console switch 1 artificial selection, CPU2 discerns corresponding select command and show the name of selected service area on LCD4.In addition, CPU2 reads the frequency and the recognition number of selected service area from EEPROM3.
CPU2 control PLL IC 5A receives the radio call ripple signal with institute's reading frequency and ID number number information frequency band corresponding.Under the control of CPU2, PLL IC 5A exports a new voltage control signal to VCO 5B, thereby makes the signal of VCO 5B vibration at the receivable frequency band of selected service area.The oscillator signal that VCO 5B produces is added on the frequency mixer 7A by frequency multiplier 11.
Therefore, have only when the receiver 6 radio call ripple signal that receives is consistent with the frequency band of selected service area, this signal is just handled by IF processor 7IF, and the ID of selected service area number number information is just therefrom extracted by information extraction processor 8.CPU2 will be compared with the ID number number information that reads from EEPROM3 by the ID number number information that information extraction processor 8 extracts.If comparative result be by information extraction processor 8 the ID that extracts number number information consistent with the ID that reads from EEPROM3 number number information, then CPU2 alarms and numeral/character display program.
As a result, newly select the radio call of service area just to become possibility the user.
Select for above mentioned manual service district, as long as CPU2 does not receive next service area select command from console switch 1, it just keeps the new service area of selecting constant.
In addition, when the service area of new choosing receive bad or its during by wrong choice (not and the corresponding receive frequency in this area), CPU2 shows that movingly one shows that newly selecting service area is the symbol that can't receive in just repeating on LCD4.Therefore, the user can know that current location or selected service area can't receive.
Simultaneously, when part ID number number information of reception radio call ripple signal with when EEP-ROM3 reads ID number number information inconsistency, CPU2 after selecting the new business district in the scheduled time (for example 20 minutes) carry out ID number number continuously and search for and compare operation.
If the result of search of ID number number and compare operation be the radio call electric wave signal that receives part ID number number information still with the ID that reads from EEPROM3 number number information inconsistency, be unusual just CPU2 drives buzzer BZ periodically by the buzzing driver 9C in the drive circuit 9 with the selection of notifying the customer service district.
Mistake during this service area is selected makes can not be by User Recognition from the other side's calling.At this moment, the user must the correct once more current place service area of selecting of operating operation switch 1.
In addition on the one hand, service area can be selected as hereinafter describing automatically by the user.
When console switch 1 has received automatic select command, CPU2 chooses frequency and ID number number information of first service area (as regional A) from the frequency of the service area that is stored in EEPROM3 and ID number number information.Then CPU2 in a manner described control frequency synthesizer 5 to receive the radio call ripple signal of the first service area A.
Then, CPU2 differentiates whether the selected first service area A is the area that can receive.
Whether the selected first service area A is that the differentiation that can receive the area is that synchronous code in the radio call data of POCSAG (general post office's paging code standardization consulting group) the sign indicating number type by detecting (showing as Fig. 3) is carried out.
Synchronous code periodically is included in the frequency band of the radio call ripple signal of corresponding service district transmission.When the radio call ripple signal of selected service area was consistent with the receive frequency of beep-pager, this signal was sent to CPU2, IF processor 7 and information extraction processor 8 by receiver 6.As a result, CPU2 can detect the channel that synchronous code is also confirmed the registration consistent with testing result from received signal.
For this reason, when selecting inconsistent service area, CPU2 can not detect synchronous code, because do not receive signal.If synchronous code detects frequency and the ID number number information that just reads second service area (as regional B) less than, CPU2 from the frequency of the service area that is stored in EEPROM3 and ID number number information within the predetermined time.Then CPU2 control frequency synthesizer 5 receive the radio call ripple signal of the second service area B and differentiate the second service area B whether be the area that can receive (by and the identical mode of the first service area A).
Aforesaid operations carries out can receiving the area up to identifying continuously.Can receive the area if identify, CPU2 just shows its name and reads the frequency and the ID number number information in institute identification services district from EEPROM3 on LCD4.Then, the CPU2 existence that retrieval user is called out in the service area of being differentiated as previously described.
But if selected service area is differentiated for receiving the area, CPU2 just repeats on LCD4 to show that the selected service area of indication is the symbol that can receive the area with flashing.Therefore, the user knows that selected service area is the area that can receive.Then, whether be can receive area to CPU2 if differentiating Next service area in a manner described.
From another point of view, even when user error ground is selected current place service area or is in inconsistent service area, the received signal of the frequency band of user error selection may appear also.In other words, the radio call ripple signal of mistake may be consistent with the receive frequency of beep-pager.In order to prevent this situation, the area code that CPU2 registers the area code and the selected professional area of reception radio call ripple signal in the past compares and differentiates according to comparative result whether professional area, current place is user-selected area.
In other words, CPU2 not only retrieves the frequency of selected service area but also retrieve its area code.When having only frequency when selected service area all consistent with area code, CPU2 thinks that just selected service area is correct.Has the effect that guarantees service area selection reliability like this.
In addition, when beep-pager uses on the border of adjoining area, because the radio call ripple signal of same frequency may take place.For this reason, when the radio paging signal with same frequency appeared at the different time zone in adjacent two areas, CPU2 may think that the user appears at two areas simultaneously by mistake, and all can alternately show those regional names on LCD4 when the user is called out.In this case, because CPU2 has no problem on reception information and decoding ID number, it may retrieve frequency number when going wrong.If the result for retrieval frequency number surpasses fiducial value, just CPU2 drives buzzer BZ to notify the user this situation by buzzer driver 9C.Therefore, at this moment the user can address the above problem by artificial selection corresponding business district.
Can be clear that by above description according to of the present invention, wireless paging service can go to the area to offer in Any user to hold the user of single beep-pager, thereby guarantees high information transfering action.In addition, can change artificial and the professional area of selection automatically according to the area, thereby make things convenient for use.Moreover, when the user goes to different service areas, there is no need to buy new beep-pager or readjustment frequency and ID number.Has the effect that more economical wireless paging service easily is provided like this.And, receiving relatively poor area or adjoining area, the faulty operation of beep-pager can be reduced to minimum, and when having selected professional area mistakenly, has alarm and give the user so that the user corrects this selection.Thereby, more convenient reliable beep-pager can be provided.
Though disclose most preferred embodiment of the present invention in order to illustrate, those skilled in the art can know, can carry out various modifications, replenish and substitute and do not break away from the scope and spirit of the present invention that disclose as claims.
Claims (5)
1. wide area paging machine, it comprises:
Switching device is used for producing automatically/manual service district select command according to user's selection;
Control device, be used for differentiating according to described switching device automatically/frequency of the selected service area of manual service district select command and recognition number and control the radio call of selected service area so that wireless paging service can offer the user at selected service area based on frequency of being differentiated and recognition number;
Storage device is used for storing the information of user's frequency of relevant service area and recognition number and to described control device output stored information;
Display unit is used for showing the various information that comprise the professional possibility of selected service area under the control of described control device;
Apparatus for frequency synthesizing is used for control frequency acceptance band under the control of described control device so that frequency and recognition number that described control device is differentiated can be received;
Receiving system is used for receiving the radio call ripple signal of the frequency acceptance band of described apparatus for frequency synthesizing control;
The intermediate frequency process device is used for the output signal and the described apparatus for frequency synthesizing output signal of described receiving system are carried out intermediate frequency process;
The information extraction processing unit is used for extracting the frequency and the recognition number information of selected service area and exporting the frequency and the recognition number of extraction to described control device from the output signal of described intermediate frequency process device;
Drive unit is used for driving alarm light-emitting diode, motor and buzzer under described control device control.
2. method of controlling wide area radio paging, it comprises following step:
(a) it is artificial or automatically differentiating that service area selects;
(b), just from memory, read the frequency of the selected service area that the frequency of user-selected service area and recognition number and basis read and recognition number information Control frequency acceptance band radio call ripple signal with the receiving slave frequency acceptance band if it is artificial that described step (a) determines that service area selects;
(c) reception is by the radio call ripple signal of the frequency acceptance band of described step (b) control, the recognition number information of the radio call ripple signal that receives is compared with the recognition number information of reading from described memory, and differentiate existence user's calling according to comparative result;
(d) if distinguish that in described step (a) it is automatic that service area is selected, just from the service area frequency that is stored in described memory and recognition number information, read the frequency and the recognition number information of first service area, and according to the frequency of first service area of reading and recognition number information Control frequency acceptance band to receive the radio call ripple signal of the frequency acceptance band of being controlled;
(e) differentiate the radio call ripple signal of whether receiving by the frequency acceptance band of described step (d) control, whether can receive to differentiate first service area;
(f) if first service area of differentiating in described step (e) can receive then keep first service area, and if can not receive at first service area that described step (e) is differentiated and just to return step (d) to differentiate whether next service area can receive.
3. the method for a control wide area radio paging as claimed in claim 2, wherein said step (e) be included in the radio call ripple signal of the frequency acceptance band that receives described step (d) control and detect when receiving synchronous code in the radio call ripple signal, identifying first service area is the area that can receive.
4. method as claim 2 or 3 described control wide area radio pagings, wherein said step (e) comprises when the area code of the radio call ripple signal that receives the frequency acceptance band of being controlled by described step (d) and the radio call ripple signal that receives is consistent with the area code of the previous registration of first service area, identifies the area of first service area for receiving.
5. the method for a control wide area radio paging as claimed in claim 2, whether correct it also comprises the display alarm signal and drives buzzer selects step with notice customer service district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118914A CN1062407C (en) | 1994-11-17 | 1994-11-17 | Wide-area pager and method of controlling radio paging in wide area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118914A CN1062407C (en) | 1994-11-17 | 1994-11-17 | Wide-area pager and method of controlling radio paging in wide area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1123504A CN1123504A (en) | 1996-05-29 |
| CN1062407C true CN1062407C (en) | 2001-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94118914A Expired - Fee Related CN1062407C (en) | 1994-11-17 | 1994-11-17 | Wide-area pager and method of controlling radio paging in wide area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062407C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2954018B2 (en) * | 1996-06-12 | 1999-09-27 | 静岡日本電気株式会社 | Radio selective call receiver |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178476A (en) * | 1978-05-26 | 1979-12-11 | Frost Edward G | Automatic nationwide paging system |
| WO1987000994A1 (en) * | 1985-08-08 | 1987-02-12 | Network Satellite Paging Partners, Ltd. | Nationwide radio paging system |
-
1994
- 1994-11-17 CN CN94118914A patent/CN1062407C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178476A (en) * | 1978-05-26 | 1979-12-11 | Frost Edward G | Automatic nationwide paging system |
| WO1987000994A1 (en) * | 1985-08-08 | 1987-02-12 | Network Satellite Paging Partners, Ltd. | Nationwide radio paging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1123504A (en) | 1996-05-29 |
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