Five-party talkback control hoistway lighting system

Abstract

The invention discloses a five-party talkback control hoistway lighting system which comprises an elevator control system, a power supply unit, a machine room and pit operation unit, a five-party talkback communication device, a control unit, a hoistway lamp unit and a backup power supply and power supply detection unit. The machine room operation unit is close to the power supply unit to facilitate operation in the machine room; the pit operation unit is located on the first-layer hoistway and is easy to operate. The pit operation unit is independent of the five-party talkback communication device and is linked with the control unit through the communication device and a cable. The control unit is independently arranged, and components in the control unit cooperatively achieve precise lamp control and power failure energy saving. During normal power supply, each operation unit can independently control illumination; during power failure, unnecessary electric quantity loss is reduced, and it is ensured that power failure emergency equipment reaches the one-hour working duration standard. And each key unit is independently arranged, so that the lighting misoperation is avoided, and the operation process is simplified. The efficiency of the elevator shaft lighting system is remarkably improved, and the application and popularization value is high.

Description

Technical Field

[0001] The invention relates to the technical field of elevator shaft lighting, in particular to a shaft lighting system controlled by five-party intercom. Background Art

[0002] In the field of modern elevator technology, although the communication-type shaft lighting system has a certain level of intelligent control, it has many technical defects. During the elevator installation phase, the shaft lighting is often unable to be enabled because the communication device has not been installed and debugged, resulting in insufficient shaft light, which seriously hinders the installation work. It is difficult for installers to operate accurately, which is easy to cause mistakes, reduce efficiency, extend the installation cycle, and increase safety risks and additional costs.

[0003] If the communication device fails or loses power, the shaft lighting will be out of control. Whether it is normal operation, maintenance or emergency handling of the elevator, the lighting cannot be operated as required, affecting the operating visual environment and passenger experience. In emergency rescue, the process may be delayed due to the lack of lighting, threatening the lives of trapped passengers and weakening the reliability and safety of the elevator system.

[0004] During a power outage, if the communication device is powered by a backup battery, the shaft lighting control circuit will consume its power. According to relevant national standards, power outage emergency equipment must work normally for at least 1 hour, but the power consumption of the lighting control circuit can easily cause the backup battery power to decay rapidly and fail to meet the duration requirement. If the backup battery capacity is increased to meet the standard, the cost of the elevator system will increase significantly, including the cost of battery procurement, structural design due to increased installation space requirements, and increased energy consumption due to increased battery weight, which will bring both economic and technical pressures to manufacturers and users.

[0005] The communication device has a complex structure. When using its control devices and signals to control the shaft lighting, it is easy to cause interference and logical conflicts because it needs to process multiple signals. For example, the fluctuation of other system signals during elevator operation may trigger the lighting control signal by mistake, causing the lighting to operate unexpectedly, that is, malfunction. This not only destroys the stability and reliability of the lighting, but the frequent malfunctions will also interfere with the judgment of maintenance personnel, affect maintenance work, and even mislead passengers, causing panic and safety concerns.

[0006] The signal operation and processing logic of traditional communication devices in shaft lighting control is complex. Take the five-party intercom communication device as an example. A single control device has many functions. For example, a dial button corresponds to dialing the intercom, exiting the maintenance state, lighting or extinguishing the shaft lighting, etc. according to different times. Operators need to accurately remember the number of operations and the corresponding functions. In actual use, especially in emergency or frequent operations, it is easy to make mistakes, affecting work efficiency. At critical moments, serious consequences may occur due to lighting problems, increasing the difficulty of operation and the cost of use.

[0007] When operating the shaft lighting in the pit, the existing system requires personnel to enter the pit and access the communication device before operation. The pit is small and the environment is harsh, which makes it inconvenient for personnel to enter and operate. Strict safety regulations must be followed, which is time-consuming and laborious. In addition, due to space limitations, it is difficult to operate comfortably in the pit and it is easy to make mistakes. If there is water accumulation, oil pollution, etc., the operating environment will be worse, which is not conducive to personnel safety and equipment maintenance, and reduces the convenience and work efficiency of pit operations. Summary of the invention

[0008] The purpose of the present invention is to provide a shaft lighting system controlled by a five-party intercom, which effectively solves the problem that the shaft lighting cannot be used during the installation stage of the elevator (when the five-party intercom communication device has not been installed and debugged) and when the five-party intercom communication device fails. During the installation of the elevator, the shaft lighting can be used without waiting for the communication device to be debugged, which greatly shortens the installation period and improves the installation efficiency. During the maintenance stage, even if the communication device fails, the shaft lighting can be quickly and conveniently controlled through the machine room operation unit, which reduces the extension of maintenance time caused by lighting problems and reduces maintenance costs.

[0009] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a shaft lighting system controlled by five-party intercom, comprising an elevator control system, a power supply unit, a machine room operation unit, a pit operation unit, a five-party intercom communication device, a control unit, a shaft lamp unit, a backup power supply unit and a power detection unit; the elevator control system is electrically connected to the backup power supply unit; the machine room operation unit is arranged next to the power supply unit; the pit operation unit is arranged in the first-floor shaft; the pit operation unit is communicatively connected with the control unit through the five-party intercom communication device; the control unit is arranged near the power supply unit; the power supply unit supplies power to the lighting unit and the machine room operation unit respectively; the backup power supply unit supplies power to the power outage emergency equipment (including the five-party intercom communication device, emergency lighting, rescue, etc.); the power detection unit is used to detect the power supply status of the power supply unit to control the start and stop of the control unit; the control unit is electrically connected to the lighting unit; the lighting unit is electrically connected to the machine room operation unit.

[0010] As a further improvement of the technical solution of the present invention, the pit operation unit is an independent unit arranged outside the five-party intercom communication device; the five-party intercom communication device located at the foundation pit provides control I / O input for the pit operation unit, and the five-party intercom communication device located in the machine room provides I / O output for the control unit, and signal transmission is performed through the five-party intercom communication device and its cables.

[0011] As a further improvement of the technical solution of the present invention, the control unit is an independent unit independently arranged outside the five-party intercom communication device, and the control unit includes a light control signal driving component and a power detection unit execution component; the pit operation unit controls the connection and disconnection of the light control signal driving component, and operating the pit operation unit once makes the light control signal driving component connected, and operating the pit operation unit again makes the light control signal driving component disconnected; the power detection unit detects the state of the power supply unit, and when power is supplied, the power detection unit execution component is connected, and when power is off, the power detection unit execution component is disconnected.

[0012] As a further improvement of the technical solution of the present invention, in terms of the power supply circuit and the control circuit: when the shaft lighting power supply is normally supplied, the power supply unit provides AC220V, which is converted into DC24V by the backup power supply unit to supply power to the five-party intercom communication device; the power detection unit drive component detects that the power supply unit is normally supplied and starts, the power detection unit execution component is closed, and the pit operation unit can control the shaft lighting. At the same time, the machine room operation unit can independently control the shaft lighting without being affected by the pit operation unit & control unit; the pit operation unit & control unit can also independently control the shaft lighting without being affected by the machine room operation unit, thereby solving the problem that the shaft lighting cannot be used / controlled when the five-party intercom communication device is not installed or fails.

[0013] As a further improvement of the technical solution of the present invention, when the shaft lighting power supply is cut off, the backup power supply unit outputs DC24 to continue to supply power to the five-party intercom communication device; the power detection unit drive component stops after detecting that the power supply unit is cut off, and the power detection unit execution component is disconnected, and the pit operation unit cannot control the shaft lighting (no control is required in the shaft lighting power outage state). At this time, the power detection unit execution component also disconnects the signal of the light control signal drive component, thereby reducing the power consumption of the backup power supply unit output to the light control signal drive component, solving the problem that the backup battery capacity is not sufficient to power the emergency equipment for 1 hour.

[0014] As a further improvement of the technical solution of the present invention, the machine room operation unit, the pit operation unit, the control unit and the power supply detection unit are all independently arranged, in order to distinguish them from the control devices and signals of the communication device, avoid the misoperation of the shaft lighting, and also solve the problem of complicated operation.

[0015] As a further improvement of the technical solution of the present invention, the machine room operation unit and the pit operation unit can be buttons, switches, or touch-type, inductive devices (the signal type can be pulse, waveform, voice, sound, etc.) sensing, touch, QR code, etc.; the five-party intercom communication device is a specific embodiment of the present case, and the present case can also be implemented by transforming other communication devices of the elevator (such as calling communication devices, elevator status detection communication devices, elevator master control communication devices, monitoring communication equipment, elevator debugging communication tools, remote monitoring communication systems and wireless connection terminal equipment, etc.); the five-party intercom communication device can adopt wired transmission or wireless transmission; the control unit can be an I / O port, a transistor, a thyristor, or a control circuit or control device for this purpose; the power detection unit can be an I / O port, a transistor, a thyristor, or a control circuit or control device for this purpose; the electrical parameters of the power supply unit are examples of the implementation of the present case, and other electrical parameters can be obtained through different circuit conversions.

[0016] The present invention has the following beneficial effects:

[0017] Significantly improve the convenience of installation and maintenance: The design of the machine room operating device effectively solves the problem of the inability to use shaft lighting during the installation phase (when the five-party intercom communication device has not been installed and debugged) and when the five-party intercom communication device fails. During the elevator installation process, the shaft lighting can be used without waiting for the communication device to be debugged, which greatly shortens the installation cycle and improves the installation efficiency. During the maintenance phase, even if the communication device fails, the shaft lighting can be quickly and conveniently controlled through the machine room operating unit, reducing the extension of maintenance time caused by lighting problems and reducing maintenance costs.

[0018] Enhanced product performance and reliability: The five-party intercom communication device and backup power supply solution successfully solved the problem of the inability to control the shaft lighting after the elevator communication system loses power. It ensures that the shaft lighting can be controlled under various power conditions, improves the reliability of the elevator system, ensures the safety of the elevator in emergency situations (such as power outages, communication failures, etc.), reduces the risk of safety accidents caused by uncontrolled lighting, and provides a more stable and reliable lighting environment for passengers and maintenance personnel.

[0019] Reduce costs and meet emergency standards: Setting up a power detection unit and a control unit effectively solves the problem that the backup battery capacity is insufficient to power emergency equipment for 1 hour. By properly cutting off the power consumption of the backup battery by the shaft lighting control circuit during a power outage, the power supply duration requirements of emergency equipment can be met without increasing the backup battery capacity. This not only reduces the battery procurement cost, but also reduces the problems of increased equipment size and weight caused by increased battery capacity, and improves the space utilization and energy efficiency of the elevator system.

[0020] Simplify operation and avoid misoperation: The machine room operation unit, pit operation unit, control unit and power detection unit are all independently set, which effectively avoids the occurrence of misoperation of shaft lighting. Each unit performs its own duties, reducing the possibility of misoperation caused by signal interference or complex operation logic. At the same time, it simplifies the complex operation of controlling devices and signals using communication devices, such as avoiding the cumbersome operation caused by the multi-purpose buttons of traditional five-party intercom communication devices, making the control of shaft lighting more intuitive, simple and convenient, improving user experience, and reducing the learning cost and operation error rate of operators.

[0021] Provide maintenance warnings and safety guarantees: Use the five-party intercom communication device to transmit the control signal of the shaft lighting. When the five-party intercom communication device fails, it can serve as a warning to the engineering personnel when performing maintenance. Maintenance personnel can promptly discover the failure of the communication device and repair it, reducing other safety hazards that may be caused by the failure of the communication failure to be detected in time. At the same time, an independent operation unit is set up in the pit, and the shaft lighting can be operated without the need for personnel to go deep into the pit to contact the communication device, reducing the risks of personnel when working in the pit, such as avoiding collisions, falls and other accidents caused by factors such as small pit space and dim light, and further ensuring the personal safety of maintenance personnel.

[0022] Improved control convenience: Solved the problem of communication-type shaft lighting that requires personnel to enter the pit to contact the communication device. The pit operation unit is set in the shaft on the first floor, and the operator can operate it conveniently by opening the floor door, which greatly improves the convenience of operating shaft lighting near the pit, saves operation time and labor costs, and improves the work efficiency during elevator maintenance and use.

[0023] In summary, the shaft lighting system controlled by five-party intercom of the present invention effectively solves many problems existing in the existing communication-type shaft lighting system, and has high practical value and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 A schematic diagram of the structural framework of a shaft lighting system controlled by five-party intercom according to the present invention;

[0026] Figure 2 This is a layout diagram of a shaft lighting system controlled by a five-party intercom communication device according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the five-party intercom communication device controlling the shaft lighting according to an embodiment of the present invention;

[0028] Figure 4 This is a power supply circuit & control circuit diagram for controlling shaft lighting by a five-party intercom communication device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features; in addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] See also Figures 1 to 4 The present invention provides a technical solution: an innovative five-party intercom-controlled shaft lighting system to comprehensively overcome a series of technical difficulties faced by existing communication-type shaft lighting systems, thereby significantly improving the practicality, reliability and safety of elevator shaft lighting.

[0035] The system is mainly composed of an elevator control system, a power supply unit, a machine room operation unit, a pit operation unit, a five-party intercom communication device, a control unit, a shaft light unit, a backup power supply unit and a power supply detection unit.

[0036] The machine room operation unit is cleverly placed next to the power supply unit. This layout design allows maintenance personnel to easily control the shaft lighting after entering the machine room. Whether in the daily maintenance of the elevator or in response to sudden lighting needs, the machine room operation unit can provide fast and direct lighting control methods, greatly improving the convenience and efficiency of machine room operations.

[0037] The pit operation unit is set at a specific location in the first-floor shaft. When the operator needs to work near the pit and adjust the shaft lighting, he can easily reach and operate the pit operation unit by simply opening the floor door. This design fully considers the actual needs of pit operations, avoiding the tediousness and inconvenience of operators having to go deep into the pit and look for communication devices to operate the lighting, effectively reducing the consumption of operating time and labor costs, and improving the flexibility and convenience of lighting control in the pit operation environment.

[0038] The control unit is installed next to the power supply unit. This layout is conducive to the efficient overall management of the power supply and control of the entire system. As one of the core control hubs of the entire lighting system, the control unit is installed near the power supply unit to ensure the stability and timeliness of power transmission, and it is also convenient for accurate monitoring and regulation of various power signals, thereby providing a solid technical guarantee for the stable operation of shaft lighting.

[0039] The backup power supply unit is responsible for providing power support for emergency power outage equipment during power outages. These emergency power outage equipment include five-party intercom communication devices, emergency lighting facilities, and rescue equipment. When the external power supply is interrupted, the backup power supply unit can quickly start and provide continuous and stable power supply to these important equipment, ensuring that the elevator can still maintain basic communication, lighting, and rescue functions during the power outage, ensuring the safety and comfort of passengers, and also providing the necessary conditions for emergency rescue work by maintenance personnel.

[0040] The power detection unit focuses on real-time and accurate monitoring of the power supply status of the power supply unit. By continuously detecting key parameters such as voltage and current of the power supply unit, the power detection unit can timely and accurately determine the working status of the power supply unit. Once an abnormal power supply situation is detected, such as a power outage or voltage fluctuation, the power detection unit will respond quickly and transmit the relevant signal to the control unit to trigger the corresponding control action, thereby realizing intelligent and automated control of the entire shaft lighting system.

[0041] Specifically, in the present embodiment, the pit operation unit adopts an external independent unit design that is independent of the five-party intercom communication device. This independence not only enhances the autonomy and stability of the pit operation unit, but also makes it more focused on the control of the shaft lighting in terms of structure and function. The pit operation unit adopts a self-resetting button switch signal design, which makes the operation process simpler and more intuitive. Every time the button is pressed, the pit operation unit will generate a clear switch signal, which is efficiently transmitted through the five-party intercom communication device and its dedicated cable, and finally transmitted to the control unit, thereby achieving precise control of the shaft lighting. For example, when the operator presses the button once, the light control signal drive component will be turned on, and the shaft light unit will light up immediately; when the button is pressed again, the light control signal drive component will be disconnected, and the shaft light unit will go out.

[0042] Specifically, in the present embodiment, the control unit also exists as an external unit independent of the five-party intercom communication device. This independent design concept aims to effectively distinguish the control function of the five-party intercom communication device from the control function of the shaft lighting, and avoid various problems caused by functional overlap or signal interference between the two. The internal structure of the control unit is sophisticated, and is mainly composed of a light control signal drive component and a power detection unit execution component. As one of the core components of the control unit, the light control signal drive component is directly responsible for driving and controlling the lighting and extinguishing of the shaft light unit. The power detection unit execution component works closely with the power detection unit, and adjusts its own working state in time according to the status signal of the power supply unit detected by the power detection unit, thereby achieving precise control of the light control signal drive component. For example, when the power supply unit is supplying power normally, the power detection unit execution component will be in the on state, and the pit operating unit can normally control the light control signal driving component at this time, thereby realizing flexible control of the shaft lighting; and when the power supply unit is powered off, the power detection unit execution component will be quickly disconnected, which not only makes it impossible for the pit operating unit to perform unnecessary operations on the shaft lighting (because in the power outage state, the shaft lighting usually does not require additional manual operation), but also effectively cuts off the signal connection of the light control signal driving component, thereby greatly reducing the power consumption of the light control signal driving component by the backup power supply unit during the power outage, ensuring that the backup power supply unit can concentrate the limited power resources on more critical power outage emergency equipment, such as five-party intercom communication devices, emergency lighting facilities and rescue equipment, so as to meet the strict requirements of relevant standards (such as GB standards) for power outage emergency equipment to work normally for at least 1 hour without external power supply.

[0043] Specifically, in the present embodiment, the present invention also shows excellent innovation and practicality in the design of the power supply circuit and the control circuit. When the shaft lighting power supply is in a normal power supply state, the power supply unit will output an AC220V AC voltage, which will be efficiently converted by the voltage conversion circuit inside the backup power supply unit, and will output a stable DC24V DC voltage to provide a reliable power supply for the five-party intercom communication device. At the same time, the power detection unit drive component will detect the power supply status of the power supply unit in real time. Once it is detected that the power supply unit is supplying power normally, the power detection unit drive component will start immediately and prompt the power detection unit execution component to close. In this case, the pit operation unit can smoothly interact with the control unit through the five-party intercom communication device and its cable, thereby realizing convenient control of the shaft lighting. It is worth mentioning that in this normal power supply state, the machine room operation unit has independent control authority, which can directly control the shaft lighting without being interfered by the pit operation unit and the control unit; similarly, the pit operation unit and the control unit can also independently control the shaft lighting without being affected by the machine room operation unit. This design mode in which multiple operating units are independent of each other yet cooperate with each other effectively solves the thorny problem of being unable to use or operate shaft lighting when the five-party intercom communication device is not installed, the installation is not completed, or a failure occurs, greatly improving the reliability and flexibility of the shaft lighting system.

[0044] Specifically, in the present embodiment, when the shaft lighting power supply encounters a power outage, the backup power supply unit will automatically start and output a DC24V DC voltage to continue to provide the necessary power support for the five-party intercom communication device, ensuring that the communication function of the elevator can still be maintained normally during the power outage. At the same time, the power detection unit drive component will quickly detect the power outage state of the power supply unit and stop working immediately. As the power detection unit drive component stops working, the power detection unit execution component will be disconnected. In this case, the pit operating unit will no longer be able to control the shaft lighting (this is because in the power outage state, the shaft lighting usually does not require human intervention, and in order to avoid unnecessary power consumption). More importantly, the disconnection of the power detection unit execution component will also directly cut off the signal connection of the light control signal drive component, thereby effectively reducing the power consumption of the backup power supply unit to the light control signal drive component during the power outage. Through this intelligent power supply and control circuit design, the present invention successfully solves the problem that the backup battery capacity cannot meet the normal operation of the power outage emergency equipment for 1 hour due to the consumption of backup battery power by the shaft lighting control circuit. Without increasing the backup battery capacity, it ensures that the power outage emergency equipment can operate stably and reliably within the specified time, effectively reducing the cost and energy consumption of the elevator system.

[0045] Specifically, in the present embodiment, the machine room operation unit, the pit operation unit, the control unit and the power detection unit are all independently set up. This independent setting design has multiple significant advantages. First, by clearly distinguishing these units from the control devices and signals of the five-party intercom communication device, the occurrence of misoperation of the shaft lighting caused by signal confusion or mutual interference is effectively avoided. In the traditional shaft lighting system, since the control devices of the communication device often need to process signals of multiple different functions, it is very easy to have signal conflicts or mis-triggering problems, resulting in unexpected opening or closing of the shaft lighting. The present invention sets each unit independently, so that each unit can focus on its own functional tasks, thereby greatly improving the stability and reliability of the shaft lighting system. Secondly, the independently set design can also significantly simplify the operation process and improve the convenience and efficiency of operation. In the traditional shaft lighting system, since the operation logic of the communication device is often more complicated, for example, the dial button of the common five-party intercom communication device needs to be pressed a different number of times to realize a variety of different functional operations, which requires operators to spend a lot of time and energy to learn and remember the operation method, and it is very easy to make operational errors during the actual operation. The present invention independently sets up each unit and designs a simple and intuitive operation method for each unit. For example, the machine room operation unit and the pit operation unit use simple buttons or switches to operate, so that the operator can control the shaft lighting more easily and conveniently, effectively reducing the operation difficulty and error rate, and improving the user experience.

[0046] Specifically, in practical applications, the forms of machine room operating units and pit operating units are rich and diverse. They can be in the form of traditional buttons and switches, or advanced touch-type and inductive devices. When using touch-type or inductive devices, the signal category can be in various forms such as pulses, waveforms, voices, sounds, etc., and even innovative signal triggering methods such as induction, touch, and QR codes can be used. This diverse design scheme can meet the personalized needs and usage habits of different users, and further improve the adaptability and flexibility of the shaft lighting system.

[0047] As a specific embodiment of the present invention, the five-party intercom communication device plays an important role in signal transmission in the shaft lighting system. However, the present invention is not limited to the five-party intercom communication device, but can also be flexibly transformed and implemented through other communication devices of the elevator. For example, a calling communication device, an elevator status detection communication device, an elevator master control communication device, a monitoring communication device, an elevator debugging communication tool, a remote monitoring communication system, and a wireless connection terminal device can all be used as alternative communication devices in the shaft lighting system of the present invention. This design concept of compatibility of multiple communication devices enables the present invention to be widely applicable to elevator systems of different types and configurations, and has extremely strong versatility and expansibility.

[0048] Specifically, in this embodiment, the five-party intercom communication device also has multiple options for signal transmission. It can use traditional wired transmission methods to transmit signals stably and reliably through dedicated cables; it can also use advanced wireless transmission methods to achieve efficient signal transmission using wireless communication technologies such as Bluetooth and Wi-Fi. This design scheme combining wired and wireless transmission methods can be flexibly selected according to different application scenarios and user needs, further improving the adaptability and convenience of the shaft lighting system.

[0049] Specifically, in the present embodiment, the control unit also has great flexibility in specific implementation. It can be constructed using simple I / O ports, transistors, thyristors and other basic electronic components, or it can be implemented using specially designed control circuits or complex control devices. This diverse design scheme can be reasonably selected according to different cost budgets, performance requirements and system complexity, thereby achieving the best balance between cost and performance while satisfying the basic control functions of the shaft lighting system.

[0050] Specifically, in the present embodiment, the power detection unit also has similar flexibility. It can be constructed using basic electronic components such as I / O ports, transistors, thyristors, etc., or it can be implemented using specially designed control circuits or complex control devices. This diverse design scheme can be reasonably selected according to different application requirements and system characteristics, thereby ensuring that the power detection unit can accurately and reliably detect the power supply status of the power supply unit, and timely transmit the relevant signals to the control unit to achieve intelligent control of the shaft lighting system.

[0051] The electrical parameters of the power supply unit are only used as a specific implementation example in the present invention. In fact, through different circuit conversion technologies and design methods, various other electrical parameters can be easily obtained to meet the special needs and application scenarios of different elevator systems. This flexible electrical parameter design scheme enables the present invention to be widely applicable to elevator systems with various voltage and current requirements, further improving the versatility and adaptability of the present invention.

[0052] Specifically, in actual application scenarios, when installing the five-party intercom-controlled shaft lighting system of the present invention, the machine room operation unit is installed next to the power supply unit according to the system layout diagram, the pit operation unit is installed in the first-floor shaft, and the control unit is installed near the power supply unit. The five-party intercom communication device, backup power supply unit, and power supply detection unit are also installed and connected according to design requirements.

[0053] When the elevator is in normal operation and the power supply is normal, the power supply unit provides AC220V voltage, which is converted to DC24V by the backup power supply unit to power the five-party intercom communication device. After the power detection unit detects that the power supply is normal, its drive component starts and the execution component closes. At this time, the machine room operation unit and the pit operation unit can control the shaft lighting according to their respective operation logic. For example, the machine room operator can directly switch the shaft lighting through the machine room operation unit, and the pit operator can control the light control signal drive component through the pit operation unit to realize the opening and closing of the shaft lighting. The operation is turned on once and closed again. The signal of the pit operation unit is transmitted to the control unit through the five-party intercom communication device and its cable to realize the control function.

[0054] When a power outage occurs, the backup power supply unit continues to provide DC24V power to the five-party intercom communication device. After the power detection unit detects the power outage, its drive component stops working and the execution component is disconnected. On the one hand, the pit operating unit can no longer control the shaft lighting (because the shaft lighting does not require additional control during a power outage). On the other hand, the execution component disconnects the signal of the light control signal drive component, reducing the power output of the backup power supply unit to the light control signal drive component, thereby ensuring that the backup battery can provide sufficient power supply (up to 1 hour) for emergency equipment (such as the five-party intercom communication device itself, emergency lighting, rescue equipment, etc.).

[0055] In actual use, if the five-party intercom communication device fails, the machine room operation unit can still independently control the shaft lighting without being affected by the communication device failure, thus ensuring the availability of the shaft lighting in the event of an abnormal communication device. At the same time, since each operation unit, control unit, and power detection unit are independently set, the shaft lighting malfunction caused by confusion with the control components and signals of the communication device is avoided, and the operation process is simplified, improving the reliability and usability of the system.

[0056] In summary, the five-party intercom-controlled shaft lighting system of the present invention successfully solves many technical problems existing in the existing communication-type shaft lighting system through innovative system architecture design, intelligent power supply and control circuit design, and diversified unit design and signal transmission mode selection. It has significant technological advancement, practicality and reliability, and provides a new and efficient solution for the development of elevator shaft lighting technology, which has broad market application prospects and promotion value.

[0057] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A five-party intercom controlled shaft lighting system, characterized in that: It includes an elevator control system, a power supply unit, a machine room operation unit, a pit operation unit, a five-party intercom communication device, a control unit, a shaft lamp unit, a backup power supply unit and a power detection unit; the elevator control system is electrically connected to the backup power supply unit; the machine room operation unit is arranged next to the power supply unit; the pit operation unit is arranged in the shaft of the first floor; the pit operation unit is communicatively connected with the control unit through the five-party intercom communication device; the control unit is arranged near the power supply unit; the power supply unit supplies power to the lighting unit and the machine room operation unit respectively; the backup power supply unit supplies power to the power failure emergency equipment; the power detection unit is used to detect the power supply status of the power supply unit to control the start and stop of the control unit; the control unit is electrically connected to the lighting unit; the lighting unit is electrically connected to the machine room operation unit.

2. A five-party intercom controlled shaft lighting system according to claim 1, characterized in that: The pit operation unit is an independent unit that is arranged outside the five-party intercom communication device; the five-party intercom communication device located at the foundation pit provides control I / O input for the pit operation unit, and the five-party intercom communication device located in the machine room provides I / O output for the control unit, and signal transmission is performed through the five-party intercom communication device and its cables.

3. According to claim 1, a five-party intercom-controlled shaft lighting system is characterized by: The control unit is an independent unit independently arranged outside the five-party intercom communication device, and the control unit includes a light control signal driving component and a power detection unit execution component; the pit operation unit controls the connection and disconnection of the light control signal driving component, and operating the pit operation unit once makes the light control signal driving component connected, and operating the pit operation unit again makes the light control signal driving component disconnected; the power detection unit detects the state of the power supply unit, and when power is supplied, the power detection unit execution component is connected, and when power is cut off, the power detection unit execution component is disconnected.

4. A five-party intercom controlled shaft lighting system according to claim 3, characterized in that: When the shaft lighting power supply is normal, the power supply unit provides AC220V which is converted into DC24V by the backup power supply unit to power the five-party intercom communication device; The power detection unit driving component starts after detecting that the power supply unit is supplying power normally, the power detection unit execution component is closed, and the pit operation unit can control the shaft lighting; the machine room operation unit can independently control the shaft lighting without being affected by the pit operation unit and the control unit; The pit operating unit and the control unit can also independently control the shaft lighting without being affected by the machine room operating unit.

5. A five-party intercom controlled shaft lighting system according to claim 4, characterized in that: When the shaft lighting power supply is cut off, the backup power supply unit outputs DC24 to continue to supply power to the five-party intercom communication device; the power detection unit drive component stops after detecting that the power supply unit is cut off, the power detection unit execution component is disconnected, the pit operation unit cannot control the shaft lighting, and the power detection unit execution component disconnects the signal of the light control signal drive component, thereby reducing the power consumption of the backup power supply unit output to the light control signal drive component.

6. The five-party intercom-controlled shaft lighting system according to claim 1 is characterized in that: The machine room operation unit and the pit operation unit are each one of a button, a switch, a touch device, and an inductive device.

7. The five-party intercom controlled shaft lighting system according to claim 1 is characterized in that: The five-party intercom communication device is one of a calling communication device, an elevator status detection communication device, an elevator master control communication device, a monitoring communication device, an elevator debugging communication tool, a remote monitoring communication system and a wireless connection terminal device.

8. The five-party intercom controlled shaft lighting system according to claim 1 is characterized in that: The power detection unit and the control unit are both one of an I / O port, a transistor, a thyristor, a control circuit and a control device.

9. The five-party intercom controlled shaft lighting system according to claim 1, characterized in that: The electrical parameters of the power supply unit can be converted into other electrical parameters through different circuits.

10. The five-party intercom controlled shaft lighting system according to claim 1, characterized in that: The power outage emergency equipment includes the five-party intercom communication device, emergency lighting and rescue equipment; the five-party intercom communication device adopts wired transmission or wireless transmission.

Images