CN210109973U - Server alarm circuit based on BMC and sensing module - Google Patents
Server alarm circuit based on BMC and sensing module Download PDFInfo
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- CN210109973U CN210109973U CN201920694687.1U CN201920694687U CN210109973U CN 210109973 U CN210109973 U CN 210109973U CN 201920694687 U CN201920694687 U CN 201920694687U CN 210109973 U CN210109973 U CN 210109973U
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Abstract
The utility model provides a server alarm circuit based on BMC and sensing module, the utility model discloses a BMC monitors the touch sensing module that is located on the case lid and realizes the protection to the machine case, when malicious personnel try to illegally open the case lid, the touch sensing module sends alarm signal to BMC, in time informs the administrator to carry out accident handling; when system maintenance personnel need to open the case cover to carry out routine maintenance and repair operations on the server, the circuit can temporarily eliminate the triggering of the alarm signal, effectively improves the safety and flexibility of the server, and avoids the safety risk caused by adopting a lock structure. Circuit structure have sensitivity height, with low costs, simple to operate's advantage to the part safety and the operation safety of server have been guaranteed effectively.
Description
Technical Field
The utility model relates to a server monitoring technology field, especially a server alarm circuit based on BMC and sensing module.
Background
A server refers to a computer system or device in a network that can provide certain services to users. The server includes a processor, a hard disk, a memory, a system bus, and the like, and is similar to a general-purpose computer architecture, but requires high processing capability, stability, reliability, security, scalability, manageability, and the like because a highly reliable service needs to be provided.
The processor, the memory, the hard disk, the network card and other components necessary for the normal operation of the server are positioned in the case of the server, and the files, information and other data of the user are also stored in the hard disk, so that the protection of the server components is very important. In the prior art, a server case is mostly protected by adopting a locking function of the server case.
Although the server is protected by adopting the case locking technology, the server has certain reliability, and once an illegal person pries the case cover through a violence means, the illegal person can also contact the inside of the server case to carry out malicious operation because of no alarm function; in addition, if the key is lost or stolen, great potential safety hazard can be caused to the safety of the server, so that the safety cannot be guaranteed fundamentally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a server alarm circuit based on BMC and sensing module aims at solving among the prior art server machine case monitoring and adopts the locking technique to have the big problem of safe risk, realizes the security and the flexibility that improve the server, avoids the safe risk because of adopting the keying structure to bring. .
In order to achieve the technical purpose, the utility model provides a server alarm circuit based on BMC and sensing module, alarm circuit includes:
the system comprises a BMC, a touch sensing module, a resistor, a light emitting diode, a buzzer alarm and a touch switch;
the CTL pin of the BMC is connected with the VDD pin of the touch sensing module and outputs 3.3V high level, the FST pin, the HLD pin and the SLS pin of the touch sensing module are connected with the VDD pin, and the TRI pin of the BMC is connected with the OUT pin, the light emitting diode and the buzzer alarm of the touch sensing module;
and a TCH pin of the touch sensing module is connected with the touch switch, and a resistor is arranged between the TCH pin and the touch switch.
Preferably, the touch sensing module is a JL223B chip.
Preferably, the FST pin is an input pin, and provides a fast/low power mode selection, where the fast module is when FST is 1, and the low power mode is when FST is 0;
the HLD pin is an input pin and provides holding/synchronous mode selection, the HLD is a holding mode when the HLD is equal to 1, and the HLD is a synchronous mode when the HLD is equal to 0;
the SLS pin is the input pin, provides the long mode selection of sampling, and sampling time is 1.5ms when SLS is 1, and sampling time is 3.0ms when SLS is 0.
Preferably, the touch sensing module further has an OLH pin, which is an input pin and controls a high-low level of the output terminal, and when the OLH is 1, the output terminal OUT is 0, and when the OLH is 0, the output terminal OUT is 1.
Preferably, the OLH and GND pins of the touch sensing module are grounded.
Preferably, the resistance is 1K ohm.
Preferably, when the OUT output terminal OUT is equal to 1, the buzzer alarm sounds, and the light emitting diode lights up.
Preferably, the TCH pin is an input pin and serves as a touch input end.
The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and one of the above technical solutions has the following advantages or advantageous effects:
compared with the prior art, the utility model realizes the protection of the case by monitoring the touch sensing module on the case cover by the BMC, when a malicious person tries to illegally open the case cover, the touch sensing module sends an alarm signal to the BMC to inform an administrator in time so as to process accidents; when system maintenance personnel need to open the case cover to carry out routine maintenance and repair operations on the server, the circuit can temporarily eliminate the triggering of the alarm signal, effectively improves the safety and flexibility of the server, and avoids the safety risk caused by adopting a lock structure. Circuit structure have sensitivity height, with low costs, simple to operate's advantage to the part safety and the operation safety of server have been guaranteed effectively.
Drawings
Fig. 1 is a diagram of an alarm circuit of a server based on a BMC and a sensor module according to an embodiment of the present invention;
fig. 2 is a pin structure diagram of a JL223B chip provided in an embodiment of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.
The following describes the server alarm circuit based on the BMC and the sensing module in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a server alarm circuit based on BMC and sensing module, alarm circuit includes:
the system comprises a BMC, a touch sensing module, a resistor, a light emitting diode, a buzzer alarm and a touch switch;
the CTL pin of the BMC is connected with VDD, FST, HLD and SLS pins of the touch sensing module, and the TRI pin of the BMC is connected with the OUT pin, the light emitting diode and the buzzer alarm of the touch sensing module;
and a TCH pin of the touch sensing module is connected with the touch switch, and a resistor is arranged between the TCH pin and the touch switch.
The embodiment of the utility model provides an adopt JL223B as touch sensing module, JL223B is a single track capacitanc touch-sensitive control switch chip, and this chip adopts CMOS technology to make, and simple structure and stable performance possess the high reliability simultaneously, and the built-in shake circuit that goes of chip can effectively prevent the malfunction that leads to by external noise interference. The main pins of the chip are shown in FIG. 2, including VDD, FST, HLD, SLS, OLH, TCH, OUT, and GND pins.
The VDD pin is a power supply pin, and the effective working voltage is 2-5.5V;
the FST pin is an input pin and provides fast/low-power mode selection, when the FST pin is connected with a high level, namely FST is equal to 1, the FST pin is a fast module, and when the FST pin is connected with a low level, namely FST is equal to 0, the FST pin is a low-power mode;
the HLD pin is an input pin and provides holding/synchronous mode selection, the HLD is a holding mode when the HLD is equal to 1, and the HLD is a synchronous mode when the HLD is equal to 0;
the SLS pin is an input pin and provides sampling duration mode selection, the sampling time is 1.5ms when the SLS is equal to 1, and the sampling time is 3.0ms when the SLS is equal to 0;
the OLH pin is an input pin and controls the high and low levels of the output terminal, when OLH is equal to 1, the output terminal OUT is equal to 0, and when OLH is equal to 0, the output terminal OUT is equal to 1;
the TCH pin is an input pin and is used as a touch input end;
the OUT pin is an output end and is used for outputting a signal to the touch sensing module;
the GND pin is a ground pin and is connected with low level.
The embodiment of the utility model provides an in, BMC's main function is the invasion of monitoring machine case, when server case lid is maliciously touched to illegal personnel, touch sensing module is triggered to send alarm signal, touch sensing module output high level signal gives BMC promptly, so that make the administrator in time discover that the machine case suffers the invasion, thereby can in time carry out accident handling.
And the CTL end of the BMC is a control signal and is connected to a power pin VDD end of the touch sensing module. When the circuit works normally, the BMC outputs 3.3V high level through the CTL so as to enable the touch sensing module to work normally. The input terminals FST, HLD and SLS pins of the touch sensing module are respectively connected to the VDD terminal, i.e., FST ═ 1, HLD ═ 1 and SLS ═ 1. FST is 1 so that the touch sensing module is set to a fast mode, so that the touch response time is short, about 40 ms; the HLD is equal to 1, so that the touch sensing module is set to be in a holding mode, namely, the output OUT state is kept after the touch response, and the output OUT state is still kept in a response state after the touch disappears; SLS 1 causes the touch sensing module to be set to a sampling time of 1.5ms, thus improving sensitivity. The OLH pin of the touch sensing module is grounded, and OLH is 0, that is, the output OUT is 1 when a touch occurs.
The TCH pin is the touch input end of the touch sensing module, the TCH pin is connected to the touch switch T1 through the resistor R1, the touch switch T1 is connected to the metal casing of the server case cover, when the server case cover is touched by the outside, external force can be transmitted to the TCH end through the touch switch T1, and therefore the output end OUT of the touch sensing module is triggered to output an alarm signal, namely OUT is 1. The resistor R1 is used for improving the anti-interference capability of touch and has the size of 1K ohm.
The OUT output end of the touch sensing module is connected to the TRI input end of the BMC, the TRI is an alarm receiving end, when OUT is equal to 1, an alarm is triggered, the BMC can timely acquire the alarm signal, and an administrator timely performs accident handling. When the alarm signal triggers, because OUT equals 1 for the buzzer siren sends the buzzing sound, and red emitting diode D1 lights simultaneously, plays the warning effect to malicious personnel.
When a system maintenance worker needs to open a cabinet cover to carry out frequent maintenance, repair and other operations on the server, because the manager sets the CTL end of the BMC to output a low level, the CTL is 0, the touch sensing module is short of power supply and does not work temporarily, and the CTL is set to be 1 in time after the maintenance work is finished.
The utility model realizes the protection of the case by monitoring the touch sensing module on the case cover by the BMC, when malicious personnel tries to illegally open the case cover, the touch sensing module sends an alarm signal to the BMC to inform an administrator in time so as to process accidents; when system maintenance personnel need to open the case cover to carry out routine maintenance and repair operations on the server, the circuit can temporarily eliminate the triggering of the alarm signal, effectively improves the safety and flexibility of the server, and avoids the safety risk caused by adopting a lock structure. Circuit structure have sensitivity height, with low costs, simple to operate's advantage to the part safety and the operation safety of server have been guaranteed effectively.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A server alarm circuit based on BMC and sensing module, characterized in that, the alarm circuit includes:
the system comprises a BMC, a touch sensing module, a resistor, a light emitting diode, a buzzer alarm and a touch switch;
the CTL pin of the BMC is connected with the VDD pin of the touch sensing module and outputs 3.3V high level, the FST pin, the HLD pin and the SLS pin of the touch sensing module are connected with the VDD pin, and the TRI pin of the BMC is connected with the OUT pin, the light emitting diode and the buzzer alarm of the touch sensing module;
and a TCH pin of the touch sensing module is connected with the touch switch, and a resistor is arranged between the TCH pin and the touch switch.
2. The BMC and sensor module based server alarm circuit of claim 1, wherein the touch sensor module is a JL223B chip.
3. The BMC and sensor module based server alarm circuit of claim 2, wherein the FST pin is an input pin, providing fast/low power mode selection, fast module when FST is 1, low power mode when FST is 0;
the HLD pin is an input pin and provides holding/synchronous mode selection, the HLD is a holding mode when the HLD is equal to 1, and the HLD is a synchronous mode when the HLD is equal to 0;
the SLS pin is the input pin, provides the long mode selection of sampling, and sampling time is 1.5ms when SLS is 1, and sampling time is 3.0ms when SLS is 0.
4. The BMC and sensor module-based server alarm circuit of claim 2, wherein the touch sensor module further has an OLH pin, which is an input pin and controls a high level and a low level of the output terminal, and when the OLH is 1, the output terminal OUT is 0, and when the OLH is 0, the output terminal OUT is 1.
5. The BMC and sensor module based server alarm circuit of claim 2, wherein OLH and GND pins of the touch sensor module are grounded.
6. The BMC and sensor module based server alarm circuit of claim 2, wherein the resistance is 1K ohms.
7. The BMC and sensor module based server alarm circuit of claim 4, wherein when the output end OUT is equal to 1, the buzzer alarm sounds, and the light emitting diode lights up.
8. The BMC and sensor module based server alarm circuit of claim 2, wherein the TCH pin is an input pin and serves as a touch input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694687.1U CN210109973U (en) | 2019-05-15 | 2019-05-15 | Server alarm circuit based on BMC and sensing module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920694687.1U CN210109973U (en) | 2019-05-15 | 2019-05-15 | Server alarm circuit based on BMC and sensing module |
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| CN210109973U true CN210109973U (en) | 2020-02-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060436A (en) * | 2019-05-15 | 2019-07-26 | 苏州浪潮智能科技有限公司 | A kind of server warning circuit based on BMC and sensing module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060436A (en) * | 2019-05-15 | 2019-07-26 | 苏州浪潮智能科技有限公司 | A kind of server warning circuit based on BMC and sensing module |
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