HV Report

HV Report (G-Q-R)

Extended filtered report with hourmeter, internal battery and two temperature sensors (OW0 and OW1). Ideal for machinery monitoring, equipment with backup battery and simultaneous temperature control.

This report combines multiple metrics useful for industrial machinery and special vehicles: operation time, backup battery status and temperature monitoring.

Generate report


GHVbbc[;@dd..dd]

See G Command for parameter details.

Query current position

QHV

Response


RHVAABBBBBBCCCCCCDDDDDDDDEEEEEEEEEFFFGGGHHIIJJJKKKKKKKKLMNNOOPPPPQRSS%%%$$$$$$$$TUUUUVVXYYYYZZ

Field structure

Field	Length	Description
AA	2	Report number (00-FF)
BBBBBB	6	Date (DDMMYY)
CCCCCC	6	Time (HHMMSS)
DDDDDDDD	8	Latitude (DDMMMMM)
EEEEEEEEE	9	Longitude (DDDMMMMM)
FFF	3	Speed (km/h)
GGG	3	Heading (degrees)
HH	2	IGN+IN inputs (hex)
II	2	XP outputs (hex)
JJJ	3	Vehicle battery voltage (tenths of V)
KKKKKKKK	8	Total odometer (meters, hex)
L	1	GPS Power: 0=Off, 1=On
M	1	GPS Fix Mode: 2=2D, 3=3D
NN	2	PDOP (decimal integer)
OO	2	Number of satellites
PPPP	4	Seconds since last pos. (hex)
Q	1	Modem Power: 0=Off, 1=On
R	1	GSM registration status
SS	2	CSQ signal level
%%%	3	Internal battery voltage (hundredths of V)
$$$$$$$$	8	Hourmeter (seconds, hex)
T	1	OW0 temperature sign (+ or -)
UUUU	4	OW0 temperature (hundredths C)
VV	2	OW0 reading age (sec)
X	1	OW1 temperature sign (+ or -)
YYYY	4	OW1 temperature (hundredths C)
ZZ	2	OW1 reading age (sec)

HV report specific fields

Internal battery (%%%)

Field	Description
%%%	Voltage in hundredths of Volt (e.g.: 420 = 4.20V)

The internal battery allows the device to continue operating during vehicle power outages, ideal for detecting disconnections.

Hourmeter ($$$$$$$$)

Field	Description
$$$$$$$$	Second counter in hexadecimal

Conversion:

To get hours: decimal_value / 3600
Example: 0000E10C = 57612 sec = 16.003 hours

To control the hourmeter, see HO Command.

Temperature OW0

Field	Description
T	Sign: `+` (positive) or `-` (negative)
UUUU	Value in hundredths of degree (e.g.: 2350 = 23.50C)
VV	Seconds since last valid reading

Temperature OW1

Field	Description
X	Sign: `+` (positive) or `-` (negative)
YYYY	Value in hundredths of degree (e.g.: -0520 = -5.20C)
ZZ	Seconds since last valid reading

GSM registration status (R)

Value	Description
0	Not registered, no active search
1	Registered, home network
2	Not registered, searching for operator
3	Registration denied
4	Unknown
5	Registered, roaming

CSQ signal level (SS)

Value	Description
99	No signal / Open
0-30	Signal level (higher = better)

Report example


>RHV00291224153045-2778467-06425658045180810112700003A980130412000110115420000E10C+235005-052010;ID=974862;*5E<

Field	Value	Interpretation
Report No.	00	Report 00
Date	291224	29/12/2024
Time	153045	15:30:45
Latitude	-2778467	2778.467’S
Longitude	-06425658	6425.658’W
Speed	045	45 km/h
Heading	180	180 (South)
Vehicle voltage	127	12.7V
Internal bat.	420	4.20V
Hourmeter	0000E10C	57,612 sec = 16.0 h
Temp OW0	+2350	23.50C
Age OW0	05	5 seconds
Temp OW1	-0520	-5.20C
Age OW1	10	10 seconds

Hourmeter control

The hourmeter can be controlled through the HO Command:


// Start hourmeter
>SHO01<
 
// Stop hourmeter
>SHO00<
 
// Reset hourmeter
>SHO02<
 
// Query current value
>QHO<

The hourmeter counts time while active, regardless of engine status. Configure it correctly according to your application.

Typical usage - Machinery


// Periodic report every 5 minutes with hourmeter
>STD01E00300<
>SRL01E;TRG=TD01+;ACC={GHV01L}<
 
// Report when powering on equipment (start hourmeter)
>SRL10E;TRG=IGN+;ACC={SHO01}{GHV10H}<
 
// Report when powering off equipment (capture worked hours)
>SRL11E;TRG=IGN-;ACC={GHV11H}{SHO00}<
 
// Low internal battery alarm
>SRL35E;TRG=BL00+;ACC={GHV35H}<

Comparison with other reports

Report	Hourmeter	Internal Bat.	Temp OW0	Temp OW1
CQ	No	No	No	No
CV	No	No	Yes	Yes
HV	Yes	Yes	Yes	Yes

Compatibility

C3Legacy

ULLegacy

SPLegacy

C5Legacy

SP-IoT

SM-IoT

ZE-IoT