KR102698673B1 - Transmition system for alarm signals from facilities - Google Patents

Abstract

The present invention relates to a system for transmitting and receiving alarm signals for equipment, and may include a transmitter that detects whether alarm signals have been generated for equipment having different types and levels of alarm signals using a replaceable relay unit and wirelessly transmits the detection results, a receiver that receives the detection results of the transmitter and outputs a signal indicating whether alarm signals have been generated for each equipment, an alarm display unit that displays the occurrence of an alarm signal on a lamp representing each of the equipment according to the output of the receiver unit, and an alarm push notification unit that provides a push notification to a user terminal on which a dedicated application is installed.

Description

{Transmition system for alarm signals from facilities}

The present invention relates to an alarm signal transmission and reception system for equipment, and more specifically, to a system capable of integrated management of alarm status regardless of differences in alarm methods of equipment.

In general, various types of equipment are used in industrial sites. Each of these equipments includes an alarm generating means that generates an alarm when an abnormality occurs.

For example, the alarm generating means may use a voltage-free contact method or may output a voltage of DC voltage or AC voltage.

In addition, even if DC or AC voltage is output, there may be differences in the output of DC voltage or AC voltage for each facility, and there may also be differences in the frequency of the output voltage. Therefore, when an alarm occurs, there are various differences in the types of alarm occurrence, such as continuous alarm sound or derivative alarm sound.

Since equipment alarms are usually managed unmanned, it is not easy to recognize emergency alarms or equipment alarms in the security room or office. Therefore, technical means are required to notify the occurrence of equipment alarms to a specific monitoring location (such as the security room).

The method of connecting the alarm ports of the equipment to the monitoring location by wire has various difficulties such as difficulty in wiring and delay in wiring work time. To solve these problems, a technology for monitoring the occurrence of alarms in the equipment using wireless communication has been proposed.

For example, Patent Publication No. 10-2021-0108861 (published on September 3, 2021, Industrial Facilities and Devices Monitoring Alarm System and Method) describes a system that monitors abnormal phenomena or situations in industrial facilities and devices and transmits them through a wireless communication network.

However, the above public patent can provide a means to monitor the alarm status of one surveillance target facility, but it does not consider the various different alarm outputs of multiple facilities, and therefore has the disadvantage of not being able to monitor alarms of multiple facilities simultaneously.

The problem that the present invention seeks to solve in consideration of the above-mentioned needs is to provide a system capable of collecting and monitoring alarm signals of industrial facilities that each output different alarm signals.

More specifically, the present invention aims to provide a system including a relay that operates according to an alarm signal of a facility, wherein the relay can be replaced externally according to the type and level of alarm signal voltage of the industrial facility.

In order to solve the above technical problems, the alarm signal transmission/reception system of the equipment of the present invention may include a transmitter which detects whether alarm signals have occurred in equipment having different types and levels of alarm signals using a replaceable relay unit and wirelessly transmits the detection result, a receiver which receives the detection result of the transmitter and outputs a signal regarding whether alarm signals have occurred in each equipment, an alarm display unit which displays the occurrence of an alarm signal on a lamp representing each equipment according to the output of the receiver unit, and an alarm push notification unit which provides a push notification to a user terminal on which a dedicated application is installed.

In an embodiment of the present invention, the transmitter may include an input unit including input terminals into which an alarm signal of each of the facilities is input, a first relay unit configured with a plurality of replaceable relays whose contact states change according to the alarm signal, a first buffer unit that receives a voltage of a voltage input unit through the first relay unit and stores alarm data, and a first control unit that transmits the alarm data of the first buffer unit through the first wireless communication unit.

In an embodiment of the present invention, the receiving unit may include a second wireless communication unit that receives alarm data from the transmitting unit, a second control unit that interprets the alarm data according to settings and stores it in a second buffer, and a relay driving unit that controls power supply to a lamp of the alarm display unit by driving a second relay unit according to the alarm data stored in the second buffer.

In an embodiment of the present invention, the device may include a first frequency setting unit and a second frequency setting unit that set frequencies of each of the first control unit and the second control unit, a first ID setting unit and a second ID setting unit that set communication IDs of each of the first control unit and the second control unit, and a first option setting unit and a second option setting unit that set communication options of each of the first control unit and the second control unit.

In an embodiment of the present invention, the first frequency setting unit, the second frequency setting unit, the first ID setting unit, the second ID setting unit, the first option setting unit, and the second option setting unit are provided with a plurality of pin switches so that each function can be set according to a user's selection.

The present invention comprises a transmitter that collects alarm signals of different types from a plurality of facilities and wirelessly transmits them, and a receiver that receives and displays the wireless transmission signal of the transmitter, wherein at least the transmitter includes relays that operate according to the alarm signals of the facilities, and the relays are externally replaceable according to the type of the alarm signal of the facility, thereby enabling the monitoring of alarm occurrences of a plurality of facilities having different types and levels of alarm signals.

Figure 1 is a block diagram of an alarm signal transmission and reception system of a facility according to a preferred embodiment of the present invention.
Figure 2 is a block diagram of the transmitter in Figure 1.
Figure 3 is a block diagram of the receiver in Figure 1.

In order to fully understand the configuration and effect of the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and can have various changes. However, the description of the embodiments is provided so that the disclosure of the present invention is complete, and so that a person having ordinary knowledge in the technical field to which the present invention belongs will fully understand the scope of the invention. In the accompanying drawings, the components are illustrated with their actual sizes enlarged for convenience of explanation, and the ratio of each component may be exaggerated or reduced.

The terms "first", "second", etc. may be used to describe various components, but the components should not be limited by the terms. The terms may only be used to distinguish one component from another. For example, without departing from the scope of the present invention, the "first component" may be referred to as the "second component," and similarly, the "second component" may also be referred to as the "first component." In addition, singular expressions include plural expressions unless the context clearly indicates otherwise. The terms used in the embodiments of the present invention may be interpreted as having a meaning commonly known to a person skilled in the art, unless otherwise defined.

Hereinafter, an alarm signal transmission/reception system of an equipment according to one embodiment of the present invention will be described in detail with reference to the drawings.

Figure 1 is a block diagram of an alarm signal transmission and reception system of a facility according to a preferred embodiment of the present invention.

Referring to FIG. 1, the present invention comprises a transmitter (100) that receives alarm signals of signals from a plurality of facilities (1) or sensors and transmits them according to settings, but collects and transmits them regardless of the type of alarm signal of the facilities or sensors, a receiver (200) located remotely from the transmitter (100) and receives the alarm signal of the transmitter (100) and identifies the facility (1) that has generated an alarm, an alarm display unit (300) that displays an alarm corresponding to the facility in which an alarm has occurred, identified by the receiver (200), and an alarm push notification unit (400) that provides a push notification corresponding to the facility in which an alarm has occurred, identified by the receiver (200), to a user terminal (600).

The unexplained code 500 is a setting section, and the transmitter (100) and receiver (200) can be set as needed.

Hereinafter, the configuration and operation of the alarm signal transmission/reception system of the equipment according to a preferred embodiment of the present invention configured as described above will be described in more detail.

First, the equipment (1) can be provided in multiple numbers, and in this case, the alarm means of the equipment (1) can be directly connected to the input terminal of the transmitter (100).

The present invention is described as receiving a signal from an alarm means of the equipment (1) directly from the transmitter (100), but it is also possible to directly receive a detection signal from a sensor (not shown in the drawing) installed in the equipment (1).

The output of the alarm means (or sensors) of the equipment (1) may all have the same method, but for the purpose of explaining the characteristic operation and effect of the present invention, some or all of the equipment (1) are explained as outputting alarm signals of different methods.

For example, the alarm signal of the equipment (1) may be a voltage, and may differ between DC voltage and AC voltage. Also, for example, in the case of DC voltage, there may be differences in the output voltage level, such as 12 V output or 24 V output.

In the present invention, the transmitter (100) can monitor the occurrence of an alarm signal regardless of the type or level of the alarm signal through appropriate processing.

Figure 2 is a block diagram of a transmitter (100).

Referring to FIG. 2, the transmitter (100) of the present invention is configured to include an input unit (120) into which an alarm signal of each of the facilities (1) is input, a relay unit (130) including a plurality of relays controlled to be open or closed according to the alarm signal, a buffer (160) for buffering an input voltage of a voltage input unit (140) according to the state of the relay unit (130), a control unit (110) for transmitting detection data of the buffer (160) through a wireless communication unit (170) with a frequency and ID according to settings, a frequency setting unit (111) for setting a communication frequency of the control unit (110), an ID setting unit (112) for setting a communication ID of the control unit (110), an option setting unit (113) for setting a communication option, and a setting input unit (114) for receiving settings of the setting unit (500).

The relays of the above relay unit (130) are connected at both ends by a connecting unit (150) and can be individually replaced externally as needed.

The configuration and operation of the transmitter (100) will be described in more detail.

The input unit (120) includes a plurality of input terminals, and each of the input terminals is connected to an alarm means of the equipment (1) described above to input an alarm signal.

At this time, the alarm signal can be an electrical signal such as DC voltage or AC voltage as explained above, and there are also differences in voltage levels.

The transmitter of the present invention has a plurality of relays positioned between the voltage input unit (140) and the buffer (160), and causes the relays to be opened or closed by an alarm signal input through each input terminal of the input unit (120).

The relays of the above relay unit (130) are connected to a connecting unit (150) with connectors at both ends and are placed between the voltage input unit (140) and the buffer (160).

As explained above, the alarm signals of the equipment (1) are different from each other, and the relays of the relay unit (130) operated by the alarm signal of each equipment (1) during installation can be replaced with relays having specifications that can be switched according to the alarm signal.

For example, a relay corresponding to equipment (1) whose alarm signal is DC 12 V can be replaced with a relay that closes or opens when DC 12 V is applied, and a relay corresponding to equipment that outputs an alarm signal of DC 24 V can be replaced with a relay that closes or opens when DC 24 V is input.

Therefore, the transmitter (100) can collect alarm signals from all facilities regardless of the type of alarm signal.

The voltage input section (140) outputs a constant voltage, and a voltage signal according to the status of the relays constituting the relay section (130) is received in the buffer (160).

For example, if an alarm signal is generated in equipment #1 and no alarm signals are generated in other equipment, the data received in the buffer (160) becomes 1, 0, 0,.., 0 or conversely 0, 1, 1,.., 1.

The control unit (110) transmits the detection data received to the buffer (160) through the wireless communication unit (170).

At this time, the transmission frequency can be set by the frequency setting unit (111). The frequency setting unit (111) can be a pin switch, and the user can set the communication frequency by changing the pin setting.

The drawing shows a configuration in which the transmitter (100) of the present invention is one, but if necessary, it may be provided in multiple units, and in this case, in order to perform smooth communication, the communication frequency may be set differently for each transmitter (100).

The frequency at this time can be set to 3 bands and multiple frequencies in each band. If 32 frequencies are to be set, 5 pin switches can be used.

In addition, the ID of the transmitter (100) can be set through the ID setting unit (112). For example, when five pin switches are used as the ID setting unit (112), 32 different IDs can be set, and thus 32 transmitters (100) can be used.

And, using the frequency setting unit (111), the transmission frequency channel of the transmitter (100) can be set to single channel or two-channel transmission. This allows the transmission and reception frequencies to be used the same or the transmission frequency channel and the reception frequency channel to use different frequencies.

The option setting unit (113) also includes a number of pin switches, and by manipulating the pin switches of the option setting unit (113), only one-way communication from the transmitter (100) to the receiver (200) can be set to be possible, or two-way communication between the transmitter (100) and the receiver (200) can be set to be possible.

Additionally, the option setting section (113) can be used to activate or deactivate the beam-before-transmission (LBT) function. As is known, LBT is a function that checks whether there is a signal of the same frequency in the surroundings before transmission.

In addition, the option setting unit (113) can set the transmission method of data received in the buffer (160) to be transmitted in a serial or parallel manner.

Some of the setting functions of this option setting section (113) can be set in the setting section (500).

The above setting unit (500) may be a computing device having a program installed that can change the control unit settings of the transmitter (100) and receiver (200). At this time, the setting input unit (114) may be a serial port.

In this way, the transmitter (100) transmits data according to the communication settings set by the frequency setting unit (111), ID setting unit (112), option setting unit (113), and setting input unit (114).

Figure 3 is a block diagram of a receiver (200).

Referring to this, the receiving unit (200) includes a wireless communication unit (220) that receives data from the transmitting unit (100), a buffer (230) that buffers the received data, a relay unit (250) that drives a relay unit (250) according to the data of the buffer (230) to display an alarm status on the information display unit (300), a control unit (210) that controls communication through the wireless communication unit (220), a frequency setting unit (211) that changes the frequency setting of the control unit (210), an ID setting unit (212) that sets a communication ID, an option setting unit (213) that sets a communication option, and a setting input unit (214) that receives settings from the setting unit (500).

In the configuration of the receiver (200) as described above, the control unit (210) determines the reception frequency according to the pin switch state of the frequency setting unit (211). Single-channel or two-channel transmission and reception can be possible using the frequency setting unit (211).

In addition, the ID of the receiver (200) is set according to the pin switch status of the ID setting unit (212). The ID of the receiver (200) sets the communication ID of the receiver (200) when there is a two-way communication setting in the option setting unit (213).

The function of the option setting unit (213) may be the same as the function of the option setting unit (113) of the transmitter (100), and is specifically configured to be able to set a data interpretation option that can set the interpretation of received data.

The data interpretation option is intended to prevent an alarm from being displayed on the alarm display unit (300) due to an alarm signal detection error caused by noise or other causes.

For example, when an alarm signal of a specific facility (1) has a specific frequency, the alarm signal of the facility in the transmission data of the transmitter (100) becomes a signal that repeats high and low potentials, and this type of signal may occur due to a communication error or other surrounding electromagnetic atmosphere.

When determining whether an alarm signal has occurred using data received from the option setting unit (213), it is possible to select whether a continuous signal is determined as an alarm signal or a flashing signal is determined as an alarm signal. In particular, in the case of a flashing signal, the judgment of the alarm signal can be reserved, and if a flashing signal of the same pattern is input even after a certain period of time has elapsed, it can be determined as an alarm signal. This judgment is made in the control unit (210).

In addition, the output time of the receiver (200) can be determined using the option setting unit (213). That is, the time at which an alarm is displayed on the alarm display unit (300) can be determined.

For example, you can set it to end after 10 or 20 seconds from the time the display starts.

These settings are set according to the pin switch operation of the option setting unit (213) and the timer information stored in the internal memory of the control unit (210).

The settings input unit (214) is a serial port and receives settings from the settings unit (500).

Data entered into the buffer (230) is interpreted by the relay driving unit (240) to drive the relay unit (250), thereby indicating that an alarm signal has been generated for a specific facility in the alarm display unit (300).

The relay unit (250) includes a number of relays and supplies or cuts off power to the lamp of the alarm display unit (300) depending on the status of the relay.

The alarm display unit (300) is a panel installed at a monitoring location, includes an indicator lamp corresponding to each facility, and may include a means for generating an alarm sound.

In addition, the alarm push notification unit (400) can provide a push notification to a user terminal (600) with a dedicated application installed to notify the user that an alarm has occurred in a specific facility.

When a transmitter (100) and a receiver (200) perform two-way communication, if a transmission signal from a specific transmitter (100) is not received, the receiver (200) can transmit a retransmission request signal to the transmitter (100) of the corresponding ID.

At this time, after confirming that the transmission signal has not been received, a retransmission request signal is transmitted to the transmission unit (100) of the corresponding ID, and the transmission unit (100) that receives this does not transmit the data immediately, but delays it for a set amount of time and then transmits it.

In the case where many transmitters (100) are used in the same workplace and a transmission confirmation signal is not received due to a radio collision between transmitters (100), the delay time can be differentiated by ID to prevent secondary radio collision when automatically retransmitting.

In addition, the transmitter (100) of the present invention can perform power outage recovery by automatically transmitting initial data once according to the current state of the relay unit (130) after a power outage has occurred and has been restored.

In addition to this method, since the transmitter (100) and receiver (200) continuously communicate the on/off state of the relay in both directions, the relay state of the entire transmitter (100) and receiver (200) can be checked when a temporary error occurs due to a power outage or noise.

Although the embodiments according to the present invention have been described above, they are merely exemplary, and those with ordinary skill in the art will understand that various modifications and equivalent embodiments are possible from this. Accordingly, the true technical protection scope of the present invention should be determined by the following claims.

100: Transmitter 110: Control unit
120: Input section 130: Relay section
140: Voltage input section 150: Connection section
160:Buffer 170:Wireless Communications Unit
200: Receiver 210: Control Unit
220: Wireless Communication Unit 230: Buffer
240: Relay drive unit 150: Relay unit

Claims (5)

A plurality of transmitters that detect whether alarm signals have occurred in facilities with different types and levels of alarm signals using replaceable relay units and wirelessly transmit the detection results;
A receiving unit that receives the detection results of the above transmitter and outputs a signal indicating whether an alarm signal has been generated for each facility;
An alarm display unit that indicates the occurrence of an alarm signal on a lamp representing each of the above facilities according to the output of the above receiver unit; and
Includes an alarm push notification unit that provides push notifications to user terminals on which a dedicated application is installed;
The above transmitter,
It is composed of an input section including input terminals into which alarm signals of each of the above facilities are input, a first relay section comprising a plurality of replaceable relays whose contact states change according to the alarm signals, a first buffer section which receives voltage from a voltage input section through the first relay section and stores alarm data, and a first control section which transmits alarm data of the first buffer section through the first wireless communication section.
The above receiver,
It is composed of a second wireless communication unit that receives the alarm data of the above transmitter, a second control unit that interprets the alarm data according to the setting and stores it in a second buffer, and a relay driving unit that drives a second relay unit according to the alarm data stored in the second buffer and controls the power supply to the lamps provided in the alarm display unit and corresponding to each of the above facilities.
When the above transmitter and the receiver perform two-way communication, if the transmission signal of a specific transmitter is not received, the receiver transmits a retransmission request signal to the transmitter of the corresponding ID, and the transmitter that receives the retransmission request signal does not transmit data immediately, but delays it for a set amount of time and then transmits it to prevent radio collision between the transmitters.
The above transmitter automatically transmits initial data once according to the state of the first relay unit after a power outage has occurred and the power is restored, thereby performing power outage recovery.
An equipment alarm signal transmission and reception system characterized in that the transmitter and receiver continuously bidirectionally communicate the on/off status of the relays of the first relay unit, so that the status of all relays can be checked when a temporary error occurs due to a power outage or noise. delete delete In the first paragraph,
A first frequency setting unit and a second frequency setting unit each setting the frequencies of the first control unit and the second control unit;
A first ID setting unit and a second ID setting unit each setting a communication ID for the first control unit and the second control unit;
An alarm signal transmission/reception system of a facility including a first option setting unit and a second option setting unit that set communication options for each of the first control unit and the second control unit. In paragraph 4,
The above first frequency setting unit, second frequency setting unit, first ID setting unit, second ID setting unit, first option setting unit and second option setting unit are,
An alarm signal transmission/reception system for equipment characterized by having a plurality of pin switches, each of which can be set to a user's choice.

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