CN101577031A - Alarm system - Google Patents
Alarm system Download PDFInfo
- Publication number
- CN101577031A CN101577031A CNA2008100669636A CN200810066963A CN101577031A CN 101577031 A CN101577031 A CN 101577031A CN A2008100669636 A CNA2008100669636 A CN A2008100669636A CN 200810066963 A CN200810066963 A CN 200810066963A CN 101577031 A CN101577031 A CN 101577031A
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- radio communication
- control circuit
- input end
- warning system
- voltage input
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Abstract
The invention relates to an alarm system which comprises a control circuit, a voltage input end and a radio communication circuit, wherein the voltage input end provides working voltage for the control circuit; and the control circuit comprises a battery, a switching tube, a first resistor and a second resistor. When voltage is input into the voltage input end, the working voltage is divided through the first resistor and the second resistor so as to ensure that the switching tube of the control circuit is disconnected, and the control circuit does not provide the working voltage for the radio communication circuit, thus the radio communication circuit stops working. When no voltage is input into the voltage input end, the switching tube of the control circuit is connected, and the battery provides the working voltage for the radio communication circuit through the switching tube so as to activate the radio communication circuit to alarm.
Description
Technical field
The present invention relates to a kind of warning system.
Background technology
LCD TV has been widely used in family and various public place now because of having the frivolous advantage of volume.But because its volume is frivolous, its situation that is stolen is also more seen frequently.
Only, because the LCD TV volume is compact, so its situation that is stolen is more seen frequently.
Summary of the invention
For solving the problem that the prior art LCD TV is lost easily, be necessary to provide a kind of warning system with anti-theft feature.
A kind of warning system, it comprises a control circuit, a voltage input end and a radio communication circuit.This voltage input end provides operating voltage for this control circuit.This control circuit comprises a battery, a switching tube, one first resistance and one second resistance.When this voltage input end has the voltage input, this operating voltage is through this first resistance and this second electric resistance partial pressure, make the switching tube of this control circuit end, this control circuit does not provide operating voltage for this radio communication circuit, and this radio communication circuit quits work.When this voltage input end no-voltage input, the switching tube conducting of this control circuit, this battery provides operating voltage to arrive this radio communication circuit via this switching tube, activates this radio communication circuit and reports to the police.
A kind of warning system, it comprises a control circuit, a voltage input end and a radio communication circuit.This voltage input end provides operating voltage for this control circuit.This control circuit provides operating voltage to arrive this radio communication circuit according to the change in voltage of this voltage input end, activates this radio communication circuit and reports to the police.
Compared to prior art, warning system of the present invention has a control circuit and a radio communication circuit, and when this voltage input end had the voltage input, the switching tube of this control circuit ended, and this radio communication circuit quits work.When load was stolen, no-voltage was imported this voltage input end, the switching tube conducting of this control circuit, and this battery activates this radio communication circuit and reports to the police, so this warning system has anti-theft feature for this radio communication circuit provides operating voltage.
Description of drawings
Fig. 1 is the circuit structure block diagram of warning system one better embodiment of the present invention.
Fig. 2 is the internal circuit synoptic diagram of the control circuit of warning system shown in Figure 1.
Fig. 3 is the high-level schematic functional block diagram of the radio communication circuit of warning system shown in Figure 1.
Embodiment
Seeing also Fig. 1, is the circuit structure block diagram of warning system one better embodiment of the present invention.This warning system comprises a voltage input end 11, a power circuit 12, a LCD MODULE 13, a control circuit 14 and a radio communication circuit 15.This power circuit 12 comprises one first output terminal 121 and one second output terminal 122.This LCD MODULE 13 also can be other load.
After the voltage of these voltage input end 11 inputs is handled through this power circuit 12, first output terminal 121 of one first voltage by this power circuit 12 is provided to second output terminal 122 of these LCD MODULE 13, one second voltages by this power circuit 12 and is provided to this control circuit 14.This control circuit 14 is according to second voltage of its acceptance, and whether control is these radio communication circuit 15 power supplies.
Seeing also Fig. 2, is the internal circuit synoptic diagram of this control circuit 14.This control circuit 14 comprises an input end 141, a diode 142, a divider resistance 143, a biasing resistor 144, one first filter capacitor 145, one second filter capacitor 146, a battery 147, a switching tube 148 and an output terminal 149.The resistance of this divider resistance 143 is 1K Ω, and the resistance of this biasing resistor 144 is 10K Ω.This switching tube 148 is a P-channel enhancement type field effect transistor, the forward voltage V of this switching tube 148
Gs＜-0.6V.
The source electrode of this switching tube 148 links to each other with the negative electrode of this diode 142 and the positive pole of this battery 147 respectively, and via these first filter capacitor, 145 ground connection, the grid of this switching tube 148 is via these biasing resistor 144 ground connection, the drain electrode of this switching tube 148 links to each other with this output terminal 149, and via these second filter capacitor, 146 ground connection.The anode of this diode 142 is connected with this input end 141.This input end 141 links to each other with the grid of this switching tube 148 via this divider resistance 143.The minus earth of this battery 147.
Seeing also Fig. 3, is the high-level schematic functional block diagram of this radio communication circuit 15.This radio communication circuit 15 comprises a supply module 151, a signal emission module 152, an information storage module 153, an aut sign module 154 and a phonecard operational module 155.
This supply module 151 is electrically connected with this signal emission module 152, this information storage module 153, this aut sign module 154 and this phonecard operational module 155 respectively.This information storage module 153 stores note or telephone number, as: Mobile Directory Number or fixed telephone number.This aut sign module 154 is the charging aut sign, during these aut sign module 154 work, telephone number or the note that store in advance these information storage module 153 inside are launched through this signal emission module 152, this phonecard operational module 155 is set up with communication network and is got in touch the user that this telephone number could be called or send short messages to communication network.
The principle of work of this warning system is as follows:
See also Fig. 1 to Fig. 3, when this voltage input end 11 has the voltage input, this power circuit 12 produces one first voltage and is provided to this LCD MODULE 13, second voltage that also produces a 5V is provided to the input end 141 of this control circuit 14, after this second voltage is about 4.5V through these biasing resistor 144 dividing potential drops, be applied to the grid of this switching tube 148.This second voltage is provided to the source electrode of this switching tube 148 via this diode 142, and the source voltage that makes this switching tube 148 is 5V.The grid of this switching tube 148 and the voltage difference of source electrode are-0.5V, because the forward voltage V of this switching tube 148
Gs＜-0.6V is so this switching tube 148 ends.This second voltage can't be transferred to this output terminal 149 by this switching tube 148, causes this supply module 151 outages, and this radio communication circuit 15 is not worked.After this second voltage further is transferred to these first filter capacitor, 145 filtering by this diode 142, again to these battery 147 chargings.
When this voltage input end 11 no-voltages input, this biasing resistor 144 is moved the grid voltage of this switching tube 148 to electronegative potential, and the grid of this switching tube 148 and the voltage difference of source electrode are-5V to make its conducting.The voltage of these battery 147 outputs is transferred to this output terminal 149 by this switching tube 148 of conducting, for this supply module 151 provides operating voltage.This supply module 151 provides operating voltage for this aut sign module 154, this aut sign module 154 is launched the telephone number or the note of storage in advance of this information storage module 153 through this signal emission module 152, this phonecard operational module 155 is set up with communication network and is got in touch the user that this telephone number could be called or send short messages to this communication network.
Compared to prior art, this warning system comprises a control circuit 14 and a radio communication circuit 15, and when these power circuit 12 energisings, the switching tube 148 of this control circuit 14 ends, this control circuit 14 does not provide operating voltage for this supply module 151, and this radio communication circuit 15 quits work.When this LCD MODULE 13 is stolen, these power circuit 12 outages, no-voltage is imported this control circuit 14, switching tube 148 conductings of this control circuit 14, this battery 147 provides operating voltage via this switching tube 148 for this supply module 151, and this radio communication circuit 15 is worked, and uses the telephone number person of these information storage module 153 internal reservoir, will receive phone or note, so this warning system has anti-theft feature.
Only, it is described that warning system of the present invention is not limited to above-mentioned embodiment, can save as this power circuit 12, and this voltage input end 11 directly provides operating voltage to arrive this LCD MODULE 13 and this control circuit 14.
Claims (10)
1. warning system, it is characterized in that: this warning system comprises a voltage input end, one control circuit and a radio communication circuit, this voltage input end provides operating voltage for this control circuit, this control circuit comprises a battery, one switching tube, one first resistance and one second resistance, when this voltage input end has the voltage input, this operating voltage is through this first resistance and this second electric resistance partial pressure, make the switching tube of this control circuit end, this control circuit does not provide operating voltage for this radio communication circuit, this radio communication circuit quits work, when this voltage input end no-voltage input, the switching tube conducting of this control circuit, this battery provides operating voltage to arrive this radio communication circuit via this switching tube, activates this radio communication circuit and reports to the police.
2. warning system as claimed in claim 1 is characterized in that: this warning system further comprises a power circuit, and this voltage input end provides operating voltage by this power circuit for this control circuit.
3. warning system as claimed in claim 1 is characterized in that: this radio communication circuit is by the warning that dials phone number.
4. warning system as claimed in claim 1 is characterized in that: this radio communication circuit is by sending SMS alarm.
5. warning system as claimed in claim 1 is characterized in that: this switching tube is the P-channel enhancement type field effect transistor,
6. warning system as claimed in claim 5, it is characterized in that: the grid of this switching tube is via this second resistance eutral grounding, and be electrically connected with this voltage input end via this first resistance, its source electrode links to each other with the positive pole of this battery, and be electrically connected with this voltage input end, its drain electrode is electrically connected the minus earth of this battery with this radio communication circuit.
7. warning system as claimed in claim 6, it is characterized in that: this control circuit further comprises a diode, the source electrode of this switching tube is to be electrically connected with this voltage input end via this diode, the anode of this diode is electrically connected with this voltage input end, and its negative electrode links to each other with the source electrode of this switching tube.
8. warning system as claimed in claim 7, it is characterized in that: this control circuit further comprises one first filter capacitor and one second filter capacitor, the negative electrode of this diode is via this first filter capacitor ground connection, and the drain electrode of this switching tube is via this second filter capacitor ground connection.
9. warning system as claimed in claim 1, it is characterized in that: this radio communication circuit comprises a supply module, one signal emission module, one information storage module, an one aut sign module and a phonecard operational module, this supply module is this signal emission module, this information storage module, this aut sign module and this phonecard operational module provide operating voltage, during this aut sign module work, telephone number or note that this information storage module is stored are in advance launched by this signal emission module, this phonecard operational module and communication network interrelate, the user that the telephone number that this information storage module stores in advance will be called or send short messages to this communication network.
10. warning system, it is characterized in that: this warning system comprises a voltage input end, a control circuit and a radio communication circuit, this voltage input end provides operating voltage for this control circuit, this control circuit is according to the change in voltage of this voltage input end, provide operating voltage to arrive this radio communication circuit, activate this radio communication circuit and report to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100669636A CN101577031A (en) | 2008-05-07 | 2008-05-07 | Alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100669636A CN101577031A (en) | 2008-05-07 | 2008-05-07 | Alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101577031A true CN101577031A (en) | 2009-11-11 |
Family
ID=41271964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100669636A Pending CN101577031A (en) | 2008-05-07 | 2008-05-07 | Alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658661A (en) * | 2018-12-10 | 2019-04-19 | 江苏科技大学 | A kind of supervisory systems and its implementation |
-
2008
- 2008-05-07 CN CNA2008100669636A patent/CN101577031A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658661A (en) * | 2018-12-10 | 2019-04-19 | 江苏科技大学 | A kind of supervisory systems and its implementation |
| CN109658661B (en) * | 2018-12-10 | 2020-10-16 | 江苏科技大学 | Monitoring system and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: QIMEI ELECTRONIC CO LTD Free format text: FORMER OWNER: INNOLUX DISPLAY CO., LTD. Effective date: 20120229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120229 Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant after: Chimei Optoelectronics Co., Ltd. Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant before: Innolux Display Group |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091111 |