CN209418108U - Information shows that the display control unit of lamps and lanterns, information show lamps and lanterns - Google Patents
Information shows that the display control unit of lamps and lanterns, information show lamps and lanterns Download PDFInfo
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- CN209418108U CN209418108U CN201822192962.8U CN201822192962U CN209418108U CN 209418108 U CN209418108 U CN 209418108U CN 201822192962 U CN201822192962 U CN 201822192962U CN 209418108 U CN209418108 U CN 209418108U
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- 238000004891 communication Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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Abstract
This application involves a kind of information to show that the display control unit of lamps and lanterns, information show lamps and lanterns, row scanning monitor detect meet preset emergency condition when, scanning signal is exported to display lamp array according to the preset line-scanning period, and display lamp array is scanned；Detect meet preset economize on electricity ignition condition when, adjust the line-scanning period in scanning signal duty ratio, to reduce the brightness of display lamp array.Pass through the duty ratio of scanning signal in the control scan period, make display lamp array under meeting emergency condition and meet economize on electricity ignition condition when with different display brightness, realize the brightness regulation to display lamp array, so that information shows that lamps and lanterns have display brightness variation in varied situations, indicating effect becomes apparent from, and improves use reliability.
Description
Technical field
This application involves display control technology field, more particularly to a kind of information show lamps and lanterns display control unit,
Information shows lamps and lanterns.
Background technique
With the development of society and being constantly progressive for science and technology, people also increasingly pay attention to public safety.Emergency light is made
For a kind of information display lamp, it is widely used in the places such as school, unit and cell, is user by display relevant information
It provides and guides, such as guide escape direction in the case of fire, in case fire-fighting emergent exit signs are used.
Traditional information shows lamps and lanterns at work, controls display lamp point according to pre-set brightness by controller
It is bright.Since information display lamp is to continue to show with same brightness, indicating effect is poor, effectively people can not be instructed to evacuate.It passes
The information of system shows that lamps and lanterns have the shortcomings that use reliability is poor.
Utility model content
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of display control of the information that use reliability is high display lamps and lanterns
Device processed, information show lamps and lanterns.
A kind of information shows the display control unit of lamps and lanterns, comprising:
Line-scanning drive circuit；
Detect meet preset emergency condition when, control the line-scanning drive circuit according to preset row scan week
Phase exports the display lamp array that scanning signal shows lamps and lanterns to information, is scanned to the display lamp array；It is also used to examining
It measures when meeting preset economize on electricity ignition condition, controls scanning signal in the line-scanning drive circuit adjustment line-scanning period
Duty ratio, to reduce the row scanning monitor of the brightness of the display lamp array；
The row scanning monitor connects the line-scanning drive circuit, and the line-scanning drive circuit is used for link information
Show the display lamp array of lamps and lanterns.
A kind of information display lamps and lanterns, including display lamp array and above-mentioned display control unit.
Above- mentioned information show that the display control units of lamps and lanterns, information show lamps and lanterns, and row scanning monitor meets detecting
When preset emergency condition, scanning signal is exported to display lamp array according to the preset line-scanning period, to display lamp array into
Row scanning；Detect meet preset economize on electricity ignition condition when, adjust the line-scanning period in scanning signal duty ratio, with drop
The brightness of low display lamp array.By the duty ratio of scanning signal in the control scan period, display lamp array is made to meet emergency
Under the conditions of and when meeting economize on electricity ignition condition with different display brightness, realize the brightness regulation to display lamp array so that
Information shows that lamps and lanterns have display brightness variation in varied situations, and indicating effect becomes apparent from, and improves use reliability.
Detailed description of the invention
Fig. 1 is the structural block diagram for the display control unit that information shows lamps and lanterns in an embodiment；
Fig. 2 is the structural block diagram for the display control unit that information shows lamps and lanterns in another embodiment；
Fig. 3 is the structure principle chart for the display control unit that information shows lamps and lanterns in an embodiment；
Fig. 4 is the structure principle chart of row scanning monitor and line-scanning drive circuit in an embodiment；
Fig. 5 is the structure principle chart of column control circuit in an embodiment；
Fig. 6 is the structure principle chart of display lamp array in an embodiment；
Fig. 7 and Fig. 8 is the schematic diagram of brightness regulation in an embodiment；
Fig. 9 is the schematic diagram that Interruption is scanned in an embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
In one embodiment, a kind of display control unit of information display lamps and lanterns is provided, information shows that luminaire body can
To be emergency light etc..As shown in Figure 1, display control unit includes row scanning monitor 110 and line-scanning drive circuit 120, row
Scanning monitor 110 connects line-scanning drive circuit 120, and line-scanning drive circuit 120 shows the aobvious of lamps and lanterns for link information
Show lamp array column 210.Row scanning monitor 110 is used to detect that control row turntable driving is electric when meeting preset emergency condition
Road 120 exports scanning signal to display lamp array 210 according to the preset line-scanning period, is scanned to display lamp array 210.
Row scanning monitor 110 be also used to detect meet preset economize on electricity ignition condition when, control line-scanning drive circuit 120
The duty ratio of scanning signal in the line-scanning period is adjusted, to reduce the brightness of display lamp array 210.
Specifically, when the display lamp array 210 for needing to control information display lamps and lanterns is lighted, pass through row scanning monitor
110 output control instructions are to line-scanning drive circuit 120, to control line-scanning drive circuit 120 by the preset line-scanning period
Output scanning signal is scanned display lamp array 210, and combines in the condition adjustment scan period met detected
The duty ratio of scanning signal, to change the brightness of display lamp array 210.Line-scanning period refers to row each in display lamp array 210
The scan period of display lamp, specific value is not unique, can adjust according to the actual situation.To display lamp array within the line-scanning period
Column 210 send scanning signal, and control the lighting time of display lamp array 210 in conjunction with duty cycle adjustment, to realize brightness
It adjusts.
Wherein, the duty ratio for adjusting scanning signal in the line-scanning period is referred to reducing the brightness of display lamp array 210
By carrying out level control to the scanning signal of output, the level that the corresponding row display lamp of control is lighted in the reduction scan period accounts for whole
The ratio of a scan period reduces display lamp array so that each row display lamp lights duration reduction within the scan period
210 brightness.The scanning signal that line-scanning drive circuit 120 exports specifically can be the control display lamp in high level and light,
Display lamp is controlled in low level to extinguish；It is also possible to the control display lamp in low level to light, display is controlled in high level
Lamp extinguishes.In one embodiment, row scanning monitor 110 is detecting that control row scans when meeting preset emergency condition
Driving circuit 120 exports low level within the line-scanning period lights display lamp, i.e., controls display lamp in the emergency mode whole
A scan period lights, and is highlighted display lamp array 210.Row scanning monitor 110 meets preset economize on electricity detecting
When ignition condition, control line-scanning drive circuit 120 reduces low level proportion in the scan period, to light mould in economize on electricity
The brightness that display lamp array 210 is reduced under formula, saves the energy.
Emergency condition and the particular content of economize on electricity ignition condition be not unique, can be configured according to actual needs.One
In a embodiment, emergency condition includes receiving emergency flight control instruction, and economize on electricity ignition condition includes receiving economize on electricity control instruction.
Specifically, operator can carry out information to row scanning monitor 110 by transmission control instruction and show that the mode of lamps and lanterns is cut
It changes.When need to control information show lamps and lanterns enter contingency mode when, operator can by controlling terminal send emergency flight control refer to
It enables to row scanning monitor 110, shows that lamps and lanterns enter contingency mode to control information, display lamp array 210 is highlighted.When need
Control information show lamps and lanterns enter economize on electricity ignition mode when, operator can by controlling terminal send economize on electricity control instruction extremely
Row scanning monitor 110 shows that lamps and lanterns enter economize on electricity ignition mode to control information, reduces the brightness of display lamp array 210.Behaviour
The mode that corresponding control instruction adjusts control information display lamps and lanterns can be sent according to actual needs by making personnel, easy to operate fast
It is prompt.
Further, controlling terminal can be with row scanning monitor 110 and be communicated by wired or wireless mode.
In one embodiment, display control unit further includes the wireless communication device for connecting row scanning monitor 110, row scan control
Device receives the control instruction that controlling terminal is sent to device 110 by wireless communication.Wirelessly control control information is shown
The mode of lamps and lanterns, further improves operation ease.
In another embodiment, emergency condition includes detecting that supply network powers off, and economize on electricity ignition condition includes detection
It is not powered off to supply network power-off.Specifically, row scanning monitor 110 can be connected to supply network, when there is fire, earthquake
Etc. emergency situations when will lead to supply network power-off.Control information shows that lamps and lanterns enter emergency after detecting supply network power-off
Mode, display lamp array 210 is highlighted, to provide escape guiding for people.It then can control letter when supply network is normal
Breath display lamps and lanterns are in economize on electricity ignition mode, reduce energy consumption, can also improve information by the brightness change under different mode
Show the indicating effect of lamps and lanterns.
In the present embodiment, the pattern switching that information shows lamps and lanterns is directly carried out according to the power supply state of supply network, makes letter
Breath display lamps and lanterns have the function of carrying out display brightness variation in varied situations, and switch in time under emergency conditions highlighted
It is shown as people and guide is provided, operate relatively reliable.
In another embodiment, emergency condition includes that the environment temperature detected is less than preset temperature threshold, and economize on electricity is lighted
Condition includes that the environment temperature detected is greater than or equal to preset temperature threshold.The specific value of preset temperature threshold is also not only
One, specifically, display control unit may include the temperature sensor for connecting row scanning monitor 110, pass through temperature sensor
Detection information shows lamps and lanterns local environment temperature, and generates inductive signal and be sent to row scanning monitor 110, row scanning monitor
110 obtain bad border temperature according to inductive signal.When environment temperature is less than preset temperature threshold, then it is believed that being in night, row
Scanning monitor 110 controls information and shows that lamps and lanterns enter contingency mode, and display lamp array 210 is highlighted, so that people see clearly
Information shows information shown by lamps and lanterns.When environment temperature, which is less than, is greater than or equal to preset temperature threshold, then it is believed that being in
Daytime, row scanning monitor 110 control information and show that lamps and lanterns are in economize on electricity ignition mode, reduce energy consumption.
In the present embodiment, shows that the environmental information of lamps and lanterns carries out pattern switching by induction information, realize according to environment certainly
Dynamic switching display pattern, equally can be improved the operating reliability that information shows lamps and lanterns.
When information shows that lamps and lanterns are in different mode, row scanning monitor 110 passes through control line-scanning drive circuit
120 output scanning signals are scanned display lamp array 210.The concrete mode scanned to display lamp array 210 is not one,
It can be progressive scan, be also possible to interlacing scan.In one embodiment, row scanning monitor 110 controls row turntable driving
Circuit 120 carries out interlacing scan to display lamp array 210, guarantees that display lamp array 210 has better display effect.
When need to control information show lamps and lanterns enter economize on electricity ignition mode when, row scanning monitor 110 control row scanning drive
The concrete mode that dynamic circuit 120 adjusts the duty ratio of scanning signal in the line-scanning period is also not unique.In one embodiment
In, row scanning monitor 110 detect meet preset economize on electricity ignition condition when, according to preset economize on electricity luminance threshold control
Line-scanning drive circuit 120 adjusts the duty ratio of scanning signal in the line-scanning period.Economize on electricity luminance threshold specific value not yet
It is that uniquely, in one embodiment, economize on electricity luminance threshold may be configured as information and show that lamps and lanterns are highlighted in the emergency mode
When brightness 1/5th.Specifically, the scanning letter that row scanning monitor 110 can control line-scanning drive circuit 120 to export
In number, low level accounts for 1/5th of entire scan period, to make each row display lamp of display lamp array 210 only in scanning week
It is lighted in 1/5th times of phase, achievees the purpose that reduce by 210 brightness of display lamp array with this.Further, the present embodiment
In, the scanning signal that line-scanning drive circuit 120 exports, 1/5th scannings week since the initial time of scan period
It is low level in the time of phase.It is lighted in the initial time section of display cycle by controlling each row display lamp, so that display control
System is easy to be reliable.
Further, in one embodiment, row scanning monitor 110 is also used to receive luminance threshold regulating command, root
Economize on electricity luminance threshold is adjusted according to luminance threshold regulating command.Similarly, operator is also possible to pass through controlling terminal
Luminance threshold regulating command is sent to row scanning monitor 110, the economize on electricity luminance threshold of preservation is adjusted, operator is facilitated
Member changes information according to actual needs and shows display brightness of the lamps and lanterns when economizing on electricity ignition mode, improves information and shows lamps and lanterns
Ease of use.
In another embodiment, row scanning monitor 110 detect meet preset economize on electricity ignition condition when, according to pre-
If brightness regulation amplitude control line-scanning drive circuit adjustment the line-scanning period in scanning signal duty ratio.Similarly, bright
The specific value of the degree amplitude of accommodation is not unique.Need to control information show lamps and lanterns enter economize on electricity ignition mode when, according to
Pre-set brightness regulation amplitude changes the duty ratio of scanning signal, to reduce the brightness of display lamp array 210.For example, can
To be to show lamps and lanterns in emergency mould by information by reducing the low level of scanning signal ratio shared in time scan period
1/2 or 4/5 etc. of brightness reduces the brightness of display lamp array 210 as brightness regulation amplitude when formula.In addition, operator
Instruction equally also can be transmitted to row scanning monitor 110, brightness regulation amplitude is adjusted.
In one embodiment, as shown in Fig. 2, display control unit further includes the column control for connecting display lamp array 210
Circuit 130.Column control circuit 130 is used to export scanning signal in line-scanning drive circuit 120 and sweep to display lamp array 210
When retouching, display lamp array 210 is sent data to.Specifically, column control circuit 130 is by sending data to the display of respective column
Lamp is combined with the scanning signal that line-scanning drive circuit 120 exports and is controlled to the light on and off of display lamp in display lamp array 210
System.When the scanning signal that line-scanning drive circuit 120 exports is scanned the display lamp of certain a line, column control circuit 130
The display lamp of all column is sent data to, so that the row display lamp scanned is completely or partially lighted.It is entire aobvious when completing
Show that the scanning of lamp array column 210 can then show the information such as corresponding text or pattern later on display lamp array 210, escapes for people
Life is guided.Further, as shown in figure 3, row scanning monitor 110, line-scanning drive circuit 120 and column control circuit
130 quantity is also not uniquely, be can be one, is also possible to two or more, with specific reference to display lamp array 210
The quantity of middle display lamp is adjusted.
It is appreciated that row scanning monitor 110, line-scanning drive circuit 120 and column control circuit 130 concrete type with
Structure is not unique, as shown in figure 4, row scanning monitor 110 is using control chip IC 8.Specifically, control chip IC 8 can be with
It is 74HC595 chip.In one embodiment, line-scanning drive circuit 120 includes that the driving of two or more rows is single
Member, each row driving unit connects row scanning monitor 110, and is separately connected the display lamp that row is corresponded in display lamp array 210.It is aobvious
Show that the concrete type of lamp array column 210 is not unique, in one embodiment, display lamp array 210 is LED (Light
Emitting Diode, light emitting diode) matrix.
The type and quantity of row driving unit be not unique, as shown in figure 4, row driving unit specifically may include driving chip
IC7, driving chip IC9, driving chip IC10 and driving chip IC11.Each driving chip is all connected with control chip IC 8, and each
A driving chip is separately connected two row LED light in LED matrix.In the present embodiment, 4953 chips, port is can be used in driving chip
The port LED_ROW1- LED_ROW8 is separately connected corresponding a line LED light.Further, as shown in figure 5, column control circuit 130 is wrapped
Chip IC 1 and peripheral circuit are included, chip IC 1 connects display lamp array 210 and peripheral circuit.Specifically, chip IC 1 connects LED
Matrix, and external signal is received by peripheral circuit.In the present embodiment, MB15043 chip, port is specifically can be used in chip IC 1
The port LED_G1- LED_G16 is separately connected corresponding column LED light in LED matrix.At this point, LED matrix is designed as 8 rows 16 column
Matrix, each row respectively arranges and is separately connected corresponding ports, passes through row scanning monitor 110, line-scanning drive circuit 120 and column control
Circuit 130 cooperates to control the information of brightness and the display of LED matrix.
It is appreciated that LED matrix is not limited to be designed to the matrix of 8 rows 16 column, as shown in fig. 6, LED matrix is 4X4
Minor matrix, by LED light D28-LED lamp D31, LED light D63-LED lamp D66, LED lamp D98-LED lamp D101, LED light D133-
LED light D136 composition.The row of LED matrix passes through port LED_ROW1- port LED_ROW4 connection line-scanning drive circuit 120,
The column of LED matrix pass through port LED_G1- port LED_G4 connection column control circuit 130.The minor matrix rate-determining steps of 4X4 are such as
Under:
LED_ROW1 voltage powers on 5V, while LED_ROW2, LED_ROW3, LED_ROW4 0；The number that the first row is needed
According to being sent to LED_G1, LED_G2, LED_G3, on LED_G4.
LED_ROW2 voltage powers on 5V, while LED_ROW1, LED_ROW3, LED_ROW4 0；The number that second row is needed
According to being sent to LED_G1, LED_G2, LED_G3, on LED_G4.
LED_ROW3 voltage powers on 5V, while LED_ROW1, LED_ROW2, LED_ROW4 0；The number that the third line is needed
According to being sent to LED_G1, LED_G2, LED_G3, on LED_G4.
LED_ROW4 voltage powers on 5V, while LED_ROW1, LED_ROW2, LED_ROW3 0；The number that fourth line is needed
According to being sent to LED_G1, LED_G2, LED_G3, on LED_G4.
For entire LED matrix, respectively by the on-off of the every a line of 74HC595 chip controls for sealing in and going out, to whole
A screen is scanned.For the effect realized, interlacing scan is carried out to each scan line.It is swept such as first to row 1,3,5,7,9 ...
It retouches, then to row 2,4,6,8,10 ... and is scanned.
Brightness regulation principle is as shown in Figure 7 and Figure 8, and 74HC595 chip passes through the duty ratio for adjusting scanning signal, and change is swept
The luminance signal in the period is retouched, to carry out brightness adjustment.Every row of LED matrix has the fixed display cycle, and 32 rows are all swept
It retouches to finish and sweeps the period for a screen.For example, the scan period of a line is 0.5ms, then all the scanned time is 32 rows
16ms；Frame rate is 1000/16=62.5HZ.
Luminance signal is exactly that the time of conducting is controlled in the time of every row of each period, if the scan period is
0.5ms, whole points, then entire screen will be most bright, if only having the 0.1ms time to be lit inside scan period 0.5ms,
So brightness is by only original 1/5.As shown in figure 8, the time of scan period T1 is 0.5ms, show that the time of time t1 is
0.05ms, then brightness will be dimmed.When 74HC595 chip is into line scans by the way of scanning Interruption, the break period
The schematic diagram of scanning Interruption is shown for 100us, Fig. 9.
Above- mentioned information show the display control unit of lamps and lanterns, by the duty ratio of scanning signal in the control scan period, make
Display lamp array 210 with different display brightness, is being realized to aobvious under meeting emergency condition and when meeting economize on electricity ignition condition
Show the brightness regulation of lamp array column 210, so that information shows that lamps and lanterns have display brightness variation in varied situations, indicating effect is brighter
It is aobvious, improve use reliability.
In one embodiment, a kind of information display lamps and lanterns are provided, specifically can be emergency light etc..Information shows lamps and lanterns
Including display lamp array and above-mentioned display control unit.Wherein, LED matrix can be used in display lamp array.
Above- mentioned information show lamps and lanterns, by the duty ratio of scanning signal in the control scan period, are according with display lamp array
With different display brightness when closing under emergency condition and meeting economize on electricity ignition condition, the brightness tune to display lamp array is realized
Section, so that information shows that lamps and lanterns have display brightness variation in varied situations, indicating effect is become apparent from, and is improved using reliable
Property.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's
Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. the display control unit that a kind of information shows lamps and lanterns characterized by comprising
Line-scanning drive circuit；
Detect meet preset emergency condition when, it is defeated according to the preset line-scanning period to control the line-scanning drive circuit
Scanning signal shows the display lamp array of lamps and lanterns to information out, is scanned to the display lamp array；It is also used to detecting
When meeting preset economize on electricity ignition condition, the duty of scanning signal in the line-scanning drive circuit adjustment line-scanning period is controlled
Than to reduce the row scanning monitor of the brightness of the display lamp array；
The row scanning monitor connects the line-scanning drive circuit, and the line-scanning drive circuit is shown for link information
The display lamp array of lamps and lanterns.
2. the display control unit that information according to claim 1 shows lamps and lanterns, which is characterized in that the row turntable driving
Circuit includes two or more row driving units, and each row driving unit connects the row scanning monitor, and divides
The display lamp that row is corresponded in the display lamp array is not connected.
3. the display control unit that information according to claim 2 shows lamps and lanterns, which is characterized in that the row driving unit
For 4953 chips.
4. the display control unit that information according to claim 1 shows lamps and lanterns, which is characterized in that further include described in connection
The column control circuit of display lamp array.
5. the display control unit that information according to claim 4 shows lamps and lanterns, which is characterized in that the column control circuit
Including chip and peripheral circuit, the chip connects the display lamp array and the peripheral circuit.
6. the display control unit that information according to claim 1 shows lamps and lanterns, which is characterized in that further include described in connection
The wireless communication device of row scanning monitor.
7. the display control unit that information according to claim 1 shows lamps and lanterns, which is characterized in that further include described in connection
The temperature sensor of row scanning monitor.
8. information described in -7 any one shows the display control unit of lamps and lanterns according to claim 1, which is characterized in that described
Row scanning monitor is 74HC595 chip.
9. a kind of information shows lamps and lanterns, which is characterized in that including display lamp array and as described in claim 1-8 any one
Display control unit.
10. information according to claim 9 shows lamps and lanterns, which is characterized in that the display lamp array is LED matrix.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822192962.8U CN209418108U (en) | 2018-12-25 | 2018-12-25 | Information shows that the display control unit of lamps and lanterns, information show lamps and lanterns |
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|---|---|---|---|
| CN201822192962.8U CN209418108U (en) | 2018-12-25 | 2018-12-25 | Information shows that the display control unit of lamps and lanterns, information show lamps and lanterns |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435584A (en) * | 2018-12-25 | 2020-07-21 | 湖南汇博电子科技股份有限公司 | Information display lamp and display control device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435584A (en) * | 2018-12-25 | 2020-07-21 | 湖南汇博电子科技股份有限公司 | Information display lamp and display control device and method thereof |
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