CN105634088A - A remote controllable uninterruptible power strip - Google Patents

Abstract

A remote-control uninterruptible power supply socket comprises a socket body, a battery pack, a UPS controller and a wireless controller, wherein the battery pack and the UPS controller are connected and arranged inside the socket body; the wireless controller acquires the running state of the UPS system and/or controls the switching of the UPS system. The uninterrupted power supply socket of the invention provides continuous uninterrupted power for the socket within a period of time after power failure, so that a user can carry out emergency backup and archiving on important data, normally close the power utilization equipment and reduce the damage to the power utilization equipment caused by sudden power failure. Meanwhile, the power strip can be remotely monitored and managed, the working state of the UPS system can be mastered in real time, and the management of a user is facilitated.

Description

A remote controllable uninterruptible power strip

technical field

The invention relates to a power socket, in particular to a remote control uninterruptible power strip.

Background technique

With the development of Internet technology, the concept of smart home has gradually become familiar and accepted by people, mainly adding functions such as remote control, status inspection, and parameter detection to existing home products. Smart power strips not only have the power supply of traditional power strips, safe anti-surge, anti-short circuit, anti-overload, anti-lightning and other functions, but also introduce cloud server control technology in today's booming Internet, combined with the extensive reference of mobile terminals, Realized the mobile client's intelligent control of the socket, real-time status monitoring and auxiliary functions such as timing. Based on the above technologies, it is possible to reduce the power waste of the electric equipment in the idle time to a certain extent, and prolong the service life of the electric equipment at the same time. But these are all based on the existence of energy. Once the power is cut off, all smart devices will fail, and even cause damage to electrical equipment.

In order to prevent damage to electrical equipment caused by sudden power failures, currently only some extremely important electrical equipment will be equipped with UPS (Uninterruptable Power Supply, uninterruptible power supply) system to ensure the normal operation of electrical equipment after power failure. However, the existing UPS systems generally use maintenance-free lead-acid batteries as battery packs, which are bulky and heavy, and often appear in large power distribution centers such as computer rooms. The operating status of the system, including the voltage, current, temperature, loss of the battery pack, etc., requires a high maintenance cost.

Contents of the invention

In order to solve the technical problem that the power strips in the prior art do not have protection against sudden power failures and prevent damage to household appliances caused by sudden power failures, the present invention provides a remote-controlled uninterruptible power strip, which integrates the UPS system into The wireless controller is also introduced in the socket to realize the uninterrupted power supply and 24-hour remote monitoring and management of the socket in case of power failure.

The technical solution of the present invention to solve the above technical problems is as follows: a remote control uninterruptible power strip, including a power strip body, a battery pack, a UPS controller, a wireless controller, the battery pack is connected to the UPS controller Inside the power strip body, the wireless controller is connected to the UPS controller. The UPS controller controls the battery pack to charge and store energy when the mains power is connected, and enables the battery pack to discharge when the mains power is cut off. The plug and wireless controller provide power; the wireless controller obtains the operating status of the UPS system and/or controls the switching of the UPS system.

Preferably, it also includes a USB charger, the USB charger is connected to the UPS controller and the wireless controller, the USB charger includes two power supplies from the mains and the UPS power output, and the USB charger is connected to the UPS controller. Optocoupler connection.

Preferably, the wireless controller is connected to the UPS controller through RS232, the wireless controller uses an ESP8266 chip, the UPS controller uses a MC9S08 chip, and a diode and a resistor are used for clamping between the ESP8266 and MC9S08.

Preferably, the UPS controller is one of backup UPS, line interactive UPS or online UPS.

Preferably, the wireless controller controls the on-off of each power output interface of the power strip.

Preferably, the battery pack is composed of a lithium battery and a BMS battery management system.

Compared with the prior art, the continuous power strip of the present invention has the following beneficial effects:

1) Integrate the UPS system into the power strip, and provide uninterrupted power for the power strip within a period of time after a sudden power failure, ensuring the safety of electrical equipment and emergency backup and storage of user data;

2) Realize 24-hour remote monitoring of uninterruptible power strips. Users can remotely control and manage uninterruptible power strips through mobile clients, grasp the status of the UPS system in real time, and control the on-off of each power interface of the power strips;

3) Combining the uninterruptible power strip and the USB charger, it will continue to supply power to the UPS interface in the event of a power failure, realizing the function of a mobile power supply. Other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail with reference to the accompanying drawings.

Description of drawings

Fig. 1 is a structural block diagram of the remote control uninterruptible power strip of the present invention;

Fig. 2 is a schematic diagram of the remote control uninterruptible power strip of the present invention;

Fig. 3 is a system structure diagram of a backup UPS that can be remotely controlled for uninterruptible power strips;

Fig. 4 is a system structure diagram of an online interactive UPS that can be remotely controlled for uninterruptible power strips;

Fig. 5 is a system structure diagram of an online UPS that can be remotely controlled by an uninterruptible power strip;

Fig. 6 is a schematic diagram of the appearance of the remote-controlled uninterruptible power strip of the present invention;

Fig. 7 is a circuit connection diagram of the wireless controller and the UPS controller;

Fig. 8 is a structure diagram of the USB charger input circuit;

Fig. 9 is a schematic diagram of the remote control interface of the present invention.

detailed description

The principles and technical solutions of the present invention will be described below in conjunction with the accompanying drawings. It should be noted here that the examples are only used to help explain the present invention, and are not intended to limit the scope of the present invention.

The remote control uninterruptible power strip of the present invention integrates a UPS controller, a battery pack, and a wireless controller on the basis of the traditional power strip, as shown in FIG. 1 . When the mains is connected, the power strip supplies power to the load and at the same time charges the battery pack through the UPS controller. When there is a sudden power failure, the UPS controller immediately starts the discharge of the battery pack to provide the load with the required power to ensure a short period of time in the event of a sudden power failure. The continuous power supply of the plug-in connection load within a certain period of time, while the wireless controller is connected to the UPS controller, the user can obtain the working status of the UPS system through the wireless controller, and control the on-off of each power output interface on the UPS and/or the plug-in.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention. In this embodiment, a wireless controller is used as the main control chip. Those skilled in the art may also select a UPS controller as the main control chip according to the design requirements for controlling the switches of each power output interface. on and off. In this embodiment, the power strip includes a mains output interface, an uninterruptible power supply output interface, a USB power output interface and a night light emergency light, wherein the mains output interface is only powered by the mains, and no Power Output. The uninterruptible power supply output interface and the USB charger include two power supply paths respectively. When the mains power is on, the power is supplied by the mains. When the mains power is cut off, the UPS controller starts the battery pack to discharge. The power supply of the charger ensures the continuous power supply of the uninterruptible power supply output interface and the USB power output interface. Since the output voltage of the UPS controller is relatively high, in this embodiment, the wireless controller and the night light emergency light are powered by the USB charger, and the wireless controller is connected to the UPS controller, the night light emergency light, and the USB power output interface respectively. The switch RLY1, the uninterruptible power supply output interface switch RLY2, and the mains output interface switch RLY3 are connected by communication to control the on-off of each power output interface.

In order to illustrate the connection and control relationship of each component of the present invention in more detail, FIG. 3 shows a system structure diagram of another embodiment of the present invention. This embodiment uses a backup UPS for illustration. The battery pack is composed of a lithium battery and a BMS battery management unit. The UPS controller is used as the main control chip. The wireless controller and the UPS use RS232 real-time communication to control the state switching of the UPS. The UPS controls the on-off of each power output interface switch through the UPS controller. When the mains power is cut off, the UPS starts to work, and the battery pack converts the battery voltage into high-voltage DC through the booster, and then converts it into the output power of the power strip through the inverter, and the output of the inverter is also used as the power supply of the USB charger. , to ensure that the USB can continue to maintain a powered state when the power is cut off. The UPS controller transmits data such as input voltage, input current, battery voltage, battery current, battery power, output voltage, output current, and alarm information to the wireless controller. /4G/GPRS and other methods to transmit information to the user's mobile client. Data transmission is bidirectional, and customers can also transmit commands to the remote-controlled uninterruptible power strip through this path according to requirements, to perform operations such as UPS startup, shutdown, on-off freezing, and control the on-off of each power output interface. The implementation of online interactive UPS and online UPS is shown in Fig. 4 and Fig. 5. The principle is similar to that of backup UPS. Those skilled in the art can realize the present invention according to the schematic structural diagram shown, and will not repeat them here.

When the power strip is powered on, for safety reasons, the USB power output interface and other power output interfaces of the power strip are in a state of no power. The USB charger has two inputs, one is the utility power, and the other is the output of the UPS. When the mains is normal, it is rectified through the input of the mains, and the flyback DC-DC is converted into +5V output. The +5V output is used as an auxiliary power supply for the wireless controller and UPS controller through D1 and D3. The wireless controller communicates with the UPS controller through RS232 to query the status of the UPS, the mains voltage, and the battery voltage. After all the samples are normal, send the command to turn on the UPS to the wireless controller through the UPS switch on the power strip or the mobile client. After receiving the command, the UPS controller judges whether the conditions for turning on the UPS are met, and switches RLY2 to node 1 if it meets the requirements. , the UPS output is directly supplied by the mains power, and the charger is turned on at the same time, and the battery pack is charged by the mains power, and the UPS works in the charging mode at this time. When the power is off, quickly turn on the booster to switch the voltage of the battery pack to high-voltage DC, and then convert the high-voltage DC into AC power available to the electrical equipment through the inverter, switch RLY2 to node 2, and use the inverter output as UPS output , the UPS works in discharge mode at this time. In the power-off state, the auxiliary power of the UPS controller is powered by the battery voltage through the linear chip step-down, while the UPS output continues to supply power to the USB charger through the rectifier diode, and the +5V voltage of the USB charger to the wireless controller can also be smoothly supplied , to ensure that in the case of power failure, the mobile client can still remotely control the power strip.

The power strip contains three physical switches and one touch switch, which are USB switch, UPS switch, mains switch and night light touch switch. As shown in Figure 6, the physical switch signals are collected and processed by the UPS controller . The real-time status of USB, UPS, and mains plugs will also be transmitted to the wireless controller through RS232, and then the wireless controller will transmit it to the user through the cloud server. The touch switch signal is collected and processed by the wireless controller chip. When the switch is turned on, the corresponding LED indicator lights up, and the touch light is forced to light up when the power is off, and it is used as an emergency light. In addition, there are two high-current output connectors on the power strip, which can control the power supply of the plug through the command of the mobile client and the physical switch on the power strip, so as to ensure that the power strip is connected to a high-power load or other loads that are not suitable for UPS. normal use.

In order to illustrate the connection and control relationship between the wireless controller and the UPS controller more clearly, Figure 7 shows the circuit connection diagram of the wireless controller and the UPS controller. In this embodiment, the MC9S08 chip is used as the UPS controller, and the ESP8266 chip As a wireless controller, ESP8266 is used as the main control chip. Since the two chips have different operating voltages, diodes D1, D2 and resistors are added between RXD and TXD for clamping. The function of GPIO4 is to explore the status of UPS. When GPIO4 is 1, it means that UPS is online and can be controlled through communication. When GPIO4 is 0, it proves that UPS is offline and cannot be controlled remotely. The status information of the UPS is transmitted to the user terminal in real time through the wireless controller. GPIO5 is a mandatory command for UPS applications. UPS is a protective device and cannot be easily powered off or turned off by touch. In this embodiment, GPI05 is used to control the UPS. When GPIO5 is set to 1, the forced UPS cannot be turned on or off at will through the UPS switch on the power strip. When GPIO5 is set to 0, the UPS can be controlled by the UPS switch. GPIO0 is the control command of the mains output relay. When set to 1, the mains relay is closed, and when set to 0, the mains relay is closed. GPIO2 is the control command of the output relay of the USB charger. Since USB is a power source that can be accessed by humans, an optocoupler OPT1 is added to isolate it in this embodiment to ensure the safety of the power source. GPIO13 is the drive control interface of the LED night light; when the mains is operating normally, the LED is controlled by the receiving signal of the touch signal GPIO15, and when the mains is missing, the ESP8266 will force the output level of GPIO13 to a high level output , turn on the LED and use it as an emergency light. GPIO12 is the control interface of the UPS remote switch; GPIO14 and GPIO16 are the control interfaces of the USB power output and the mains switch respectively; GPIO10 is the LED light for wireless communication. When the wireless connection is successful, the LED light is lit.

In a preferred embodiment, both the wireless controller and the UPS controller are powered by a USB charger. The USB charger has two power sources, one is directly supplied by the mains, and the other is directly supplied by the output of the UPS. As shown in Figure 8, when the mains power is normal, the UPS is in the standby or charging state, the inverter is in the off state, and the input of the USB charger is powered by the mains power through D1 and D2 rectification. The direct power transfer from the UPS to the USB charger is reversely cut off through diodes D3 and D4. When the utility power is missing, the UPS turns on the battery booster and inverter, and the input of the USB charger is rectified by the output of the UPS through D3 and D4 to provide power. Therefore, regardless of whether the mains power is normal or absent, the USB charger can provide power for the wireless controller and the UPS controller, so that the user can still remotely control the power strip when the power is cut off.

When using the socket for the first time, it is necessary to configure a wireless controller to connect the wireless controller to the external network. The connection between the wireless controller and the external network is a known technology, which is not limited by the present invention. Bright. There are two ways to turn on the UPS. One is to turn on the UPS option through the application on the mobile phone interface, as shown in Figure 9. At this time, the mobile client sends instructions to the wireless controller of the power strip, and the wireless controller communicates through RS232 after receiving the instruction. To transmit the command to the UPS controller to turn on the UPS, one is to press and hold the UPS button on the power strip. After the UPS collects the user's start-up command, it turns on the booster module and the inverter module to turn on the UPS. After the UPS is turned on, the UPS indicator will light up.

There are two ways to turn on the USB, one is to turn on the USB option through the application on the mobile phone interface, the mobile client will send an instruction to the wireless controller, and the wireless controller will send an instruction to close the USB switch after receiving it, and the USB will be turned on; Through the USB button on the plug-in panel, the wireless communication module sends an instruction to the USB switch RLY1 after receiving the customer's command to realize the USB is turned on, and the USB indicator will light up accordingly.

There are two ways to open the normal mains power strip, one is to open the mains output option through the application of the mobile phone interface, the wireless controller accepts the command from the mobile client, and then sends an instruction to close the relay RLY3 to form an output voltage to supply power to the power strip. One is through the mains switch on the power strip, the wireless controller closes the relay RLY3 after receiving the key signal to realize the mains output, and the mains indicator lights up accordingly.

When the power is cut off, the UPS controller collects the lack of mains power, that is, turns on the booster module and the inverter to supply power to the power output interface on the power strip and the USB charger, so as to ensure that the output of the USB and the power strip will not be powered off . At this time, the power strip can be used as a mobile power supply.

All power output interfaces including USB, mains output and UPS output can be combined with the mobile client for timing, which can be set in idle time and has the ability of timing switch. For example, the USB charging plug can prevent overcharging and save unnecessary power waste.

In addition, when UPS uninterruptible power strips are applied to computers and game consoles, in a preferred embodiment, the strips also include a mandatory lock function. Parents can use the mandatory lock to forcibly turn off the power supply of the strips, and make it impossible to pass through the strips. Plug in the physical switch to turn it on. When you choose to start the mandatory lock, the wireless controller will send a command to the UPS after receiving the command, turn off all the power output switches on the strip, and no longer receive the start command from the physical switch. Turn on the socket again.

The above descriptions are only a few embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. A remote-controlled uninterruptible power strip, comprising a strip body, a battery pack, a UPS controller, and a wireless controller, characterized in that: the battery pack is connected to the UPS controller and placed in the strip Inside the main body, the wireless controller is connected to the UPS controller. The UPS controller controls the battery pack to charge and store energy when the mains power is connected, and enables the battery pack to discharge when the mains power is cut off. Provide electric energy; the wireless controller acquires the operating status of the UPS system and/or controls the switching of the UPS system. 2. The uninterruptible power strip according to claim 1, further comprising a USB charger connected to the UPS controller and the wireless controller. 3. The uninterruptible power strip according to claim 2, characterized in that: the USB charger includes a mains power supply and a UPS power output for power supply. 4. The uninterruptible power strip according to claim 2, wherein the USB charger is connected to an optocoupler. 5. The uninterruptible power strip according to claim 1, wherein the wireless controller is connected to the UPS controller through RS232. 6. The uninterruptible power strip according to claim 4, characterized in that: said wireless controller adopts ESP8266 chip, said UPS controller adopts MC9S08 chip, and diodes and resistors are used for clamping between ESP8266 and MC9S08. 7. The uninterruptible power strip according to claim 1, wherein the UPS controller is one of backup UPS, online interactive UPS or online UPS. 8. The uninterruptible power strip according to claim 1, wherein the wireless controller controls the on-off of each power output interface of the strip. 9. The uninterruptible power strip according to claim 1, wherein the battery pack is composed of a lithium battery and a BMS battery management system.